uhci.c revision 1.70
1 /* $NetBSD: uhci.c,v 1.70 1999/12/06 21:07:00 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * USB Universal Host Controller driver. 43 * Handles e.g. PIIX3 and PIIX4. 44 * 45 * Data sheets: ftp://download.intel.com/design/intarch/datashts/29055002.pdf 46 * ftp://download.intel.com/design/intarch/datashts/29056201.pdf 47 * UHCI spec: http://www.intel.com/design/usb/uhci11d.pdf 48 * USB spec: http://www.usb.org/developers/data/usb11.pdf 49 */ 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 #if defined(__NetBSD__) || defined(__OpenBSD__) 56 #include <sys/device.h> 57 #include <sys/select.h> 58 #elif defined(__FreeBSD__) 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <machine/bus_pio.h> 62 #if defined(DIAGNOSTIC) && defined(__i386__) 63 #include <machine/cpu.h> 64 #endif 65 #endif 66 #include <sys/proc.h> 67 #include <sys/queue.h> 68 69 #include <machine/bus.h> 70 #include <machine/endian.h> 71 72 #include <dev/usb/usb.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdivar.h> 75 #include <dev/usb/usb_mem.h> 76 #include <dev/usb/usb_quirks.h> 77 78 #include <dev/usb/uhcireg.h> 79 #include <dev/usb/uhcivar.h> 80 81 #if defined(__FreeBSD__) 82 #include <machine/clock.h> 83 84 #define delay(d) DELAY(d) 85 #endif 86 87 #define MS_TO_TICKS(ms) ((ms) * hz / 1000) 88 89 #if defined(__OpenBSD__) 90 struct cfdriver uhci_cd = { 91 NULL, "uhci", DV_DULL 92 }; 93 #endif 94 95 #ifdef UHCI_DEBUG 96 #define DPRINTF(x) if (uhcidebug) printf x 97 #define DPRINTFN(n,x) if (uhcidebug>(n)) printf x 98 int uhcidebug = 0; 99 #else 100 #define DPRINTF(x) 101 #define DPRINTFN(n,x) 102 #endif 103 104 /* 105 * The UHCI controller is little endian, so on big endian machines 106 * the data strored in memory needs to be swapped. 107 */ 108 #if BYTE_ORDER == BIG_ENDIAN 109 #define LE(x) (bswap32(x)) 110 #else 111 #define LE(x) (x) 112 #endif 113 114 struct uhci_pipe { 115 struct usbd_pipe pipe; 116 uhci_intr_info_t *iinfo; 117 int nexttoggle; 118 /* Info needed for different pipe kinds. */ 119 union { 120 /* Control pipe */ 121 struct { 122 uhci_soft_qh_t *sqh; 123 usb_dma_t reqdma; 124 uhci_soft_td_t *setup, *stat; 125 u_int length; 126 } ctl; 127 /* Interrupt pipe */ 128 struct { 129 int npoll; 130 uhci_soft_qh_t **qhs; 131 } intr; 132 /* Bulk pipe */ 133 struct { 134 uhci_soft_qh_t *sqh; 135 u_int length; 136 int isread; 137 } bulk; 138 /* Iso pipe */ 139 struct iso { 140 uhci_soft_td_t **stds; 141 int next, inuse; 142 } iso; 143 } u; 144 }; 145 146 /* 147 * The uhci_intr_info free list can be global since they contain 148 * no dma specific data. The other free lists do. 149 */ 150 LIST_HEAD(, uhci_intr_info) uhci_ii_free; 151 152 static void uhci_busreset __P((uhci_softc_t *)); 153 #if defined(__NetBSD__) || defined(__OpenBSD__) 154 static void uhci_power __P((int, void *)); 155 #endif 156 static usbd_status uhci_run __P((uhci_softc_t *, int run)); 157 static uhci_soft_td_t *uhci_alloc_std __P((uhci_softc_t *)); 158 static void uhci_free_std __P((uhci_softc_t *, uhci_soft_td_t *)); 159 static uhci_soft_qh_t *uhci_alloc_sqh __P((uhci_softc_t *)); 160 static void uhci_free_sqh __P((uhci_softc_t *, uhci_soft_qh_t *)); 161 static uhci_intr_info_t *uhci_alloc_intr_info __P((uhci_softc_t *)); 162 static void uhci_free_intr_info __P((uhci_intr_info_t *ii)); 163 #if 0 164 static void uhci_enter_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *, 165 uhci_intr_info_t *)); 166 static void uhci_exit_ctl_q __P((uhci_softc_t *, uhci_soft_qh_t *)); 167 #endif 168 169 static void uhci_free_std_chain __P((uhci_softc_t *, 170 uhci_soft_td_t *, uhci_soft_td_t *)); 171 static usbd_status uhci_alloc_std_chain __P((struct uhci_pipe *, 172 uhci_softc_t *, int, int, int, usb_dma_t *, 173 uhci_soft_td_t **, uhci_soft_td_t **)); 174 static void uhci_timo __P((void *)); 175 static void uhci_waitintr __P((uhci_softc_t *, 176 usbd_xfer_handle)); 177 static void uhci_check_intr __P((uhci_softc_t *, 178 uhci_intr_info_t *)); 179 static void uhci_idone __P((uhci_intr_info_t *)); 180 static void uhci_abort_xfer __P((usbd_xfer_handle, 181 usbd_status status)); 182 static void uhci_abort_xfer_end __P((void *v)); 183 static void uhci_timeout __P((void *)); 184 static void uhci_lock_frames __P((uhci_softc_t *)); 185 static void uhci_unlock_frames __P((uhci_softc_t *)); 186 static void uhci_add_ctrl __P((uhci_softc_t *, uhci_soft_qh_t *)); 187 static void uhci_add_bulk __P((uhci_softc_t *, uhci_soft_qh_t *)); 188 static void uhci_remove_ctrl __P((uhci_softc_t *,uhci_soft_qh_t *)); 189 static void uhci_remove_bulk __P((uhci_softc_t *,uhci_soft_qh_t *)); 190 static int uhci_str __P((usb_string_descriptor_t *, int, char *)); 191 192 static usbd_status uhci_setup_isoc __P((usbd_pipe_handle pipe)); 193 static void uhci_device_isoc_enter __P((usbd_xfer_handle)); 194 195 static usbd_status uhci_allocm __P((struct usbd_bus *, usb_dma_t *, 196 u_int32_t)); 197 static void uhci_freem __P((struct usbd_bus *, usb_dma_t *)); 198 199 static usbd_status uhci_device_ctrl_transfer __P((usbd_xfer_handle)); 200 static usbd_status uhci_device_ctrl_start __P((usbd_xfer_handle)); 201 static void uhci_device_ctrl_abort __P((usbd_xfer_handle)); 202 static void uhci_device_ctrl_close __P((usbd_pipe_handle)); 203 static void uhci_device_ctrl_done __P((usbd_xfer_handle)); 204 205 static usbd_status uhci_device_intr_transfer __P((usbd_xfer_handle)); 206 static usbd_status uhci_device_intr_start __P((usbd_xfer_handle)); 207 static void uhci_device_intr_abort __P((usbd_xfer_handle)); 208 static void uhci_device_intr_close __P((usbd_pipe_handle)); 209 static void uhci_device_intr_done __P((usbd_xfer_handle)); 210 211 static usbd_status uhci_device_bulk_transfer __P((usbd_xfer_handle)); 212 static usbd_status uhci_device_bulk_start __P((usbd_xfer_handle)); 213 static void uhci_device_bulk_abort __P((usbd_xfer_handle)); 214 static void uhci_device_bulk_close __P((usbd_pipe_handle)); 215 static void uhci_device_bulk_done __P((usbd_xfer_handle)); 216 217 static usbd_status uhci_device_isoc_transfer __P((usbd_xfer_handle)); 218 static usbd_status uhci_device_isoc_start __P((usbd_xfer_handle)); 219 static void uhci_device_isoc_abort __P((usbd_xfer_handle)); 220 static void uhci_device_isoc_close __P((usbd_pipe_handle)); 221 static void uhci_device_isoc_done __P((usbd_xfer_handle)); 222 223 static usbd_status uhci_root_ctrl_transfer __P((usbd_xfer_handle)); 224 static usbd_status uhci_root_ctrl_start __P((usbd_xfer_handle)); 225 static void uhci_root_ctrl_abort __P((usbd_xfer_handle)); 226 static void uhci_root_ctrl_close __P((usbd_pipe_handle)); 227 228 static usbd_status uhci_root_intr_transfer __P((usbd_xfer_handle)); 229 static usbd_status uhci_root_intr_start __P((usbd_xfer_handle)); 230 static void uhci_root_intr_abort __P((usbd_xfer_handle)); 231 static void uhci_root_intr_close __P((usbd_pipe_handle)); 232 static void uhci_root_intr_done __P((usbd_xfer_handle)); 233 234 static usbd_status uhci_open __P((usbd_pipe_handle)); 235 static void uhci_poll __P((struct usbd_bus *)); 236 237 static usbd_status uhci_device_request __P((usbd_xfer_handle xfer)); 238 239 static void uhci_add_intr __P((uhci_softc_t *, int, 240 uhci_soft_qh_t *)); 241 static void uhci_remove_intr __P((uhci_softc_t *, int, 242 uhci_soft_qh_t *)); 243 static usbd_status uhci_device_setintr __P((uhci_softc_t *sc, 244 struct uhci_pipe *pipe, int ival)); 245 246 static void uhci_device_clear_toggle __P((usbd_pipe_handle pipe)); 247 static void uhci_noop __P((usbd_pipe_handle pipe)); 248 249 #ifdef UHCI_DEBUG 250 static void uhci_dumpregs __P((uhci_softc_t *)); 251 static void uhci_dump_qhs __P((uhci_soft_qh_t *)); 252 static void uhci_dump_qh __P((uhci_soft_qh_t *)); 253 static void uhci_dump_tds __P((uhci_soft_td_t *)); 254 static void uhci_dump_td __P((uhci_soft_td_t *)); 255 #endif 256 257 #define UWRITE2(sc, r, x) bus_space_write_2((sc)->iot, (sc)->ioh, (r), (x)) 258 #define UWRITE4(sc, r, x) bus_space_write_4((sc)->iot, (sc)->ioh, (r), (x)) 259 #define UREAD1(sc, r) bus_space_read_1((sc)->iot, (sc)->ioh, (r)) 260 #define UREAD2(sc, r) bus_space_read_2((sc)->iot, (sc)->ioh, (r)) 261 #define UREAD4(sc, r) bus_space_read_4((sc)->iot, (sc)->ioh, (r)) 262 263 #define UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd) 264 #define UHCISTS(sc) UREAD2(sc, UHCI_STS) 265 266 #define UHCI_RESET_TIMEOUT 100 /* reset timeout */ 267 268 #define UHCI_CURFRAME(sc) (UREAD2(sc, UHCI_FRNUM) & UHCI_FRNUM_MASK) 269 270 #define UHCI_INTR_ENDPT 1 271 272 struct usbd_bus_methods uhci_bus_methods = { 273 uhci_open, 274 uhci_poll, 275 uhci_allocm, 276 uhci_freem, 277 }; 278 279 struct usbd_pipe_methods uhci_root_ctrl_methods = { 280 uhci_root_ctrl_transfer, 281 uhci_root_ctrl_start, 282 uhci_root_ctrl_abort, 283 uhci_root_ctrl_close, 284 uhci_noop, 285 0, 286 }; 287 288 struct usbd_pipe_methods uhci_root_intr_methods = { 289 uhci_root_intr_transfer, 290 uhci_root_intr_start, 291 uhci_root_intr_abort, 292 uhci_root_intr_close, 293 uhci_noop, 294 uhci_root_intr_done, 295 }; 296 297 struct usbd_pipe_methods uhci_device_ctrl_methods = { 298 uhci_device_ctrl_transfer, 299 uhci_device_ctrl_start, 300 uhci_device_ctrl_abort, 301 uhci_device_ctrl_close, 302 uhci_noop, 303 uhci_device_ctrl_done, 304 }; 305 306 struct usbd_pipe_methods uhci_device_intr_methods = { 307 uhci_device_intr_transfer, 308 uhci_device_intr_start, 309 uhci_device_intr_abort, 310 uhci_device_intr_close, 311 uhci_device_clear_toggle, 312 uhci_device_intr_done, 313 }; 314 315 struct usbd_pipe_methods uhci_device_bulk_methods = { 316 uhci_device_bulk_transfer, 317 uhci_device_bulk_start, 318 uhci_device_bulk_abort, 319 uhci_device_bulk_close, 320 uhci_device_clear_toggle, 321 uhci_device_bulk_done, 322 }; 323 324 struct usbd_pipe_methods uhci_device_isoc_methods = { 325 uhci_device_isoc_transfer, 326 uhci_device_isoc_start, 327 uhci_device_isoc_abort, 328 uhci_device_isoc_close, 329 uhci_noop, 330 uhci_device_isoc_done, 331 }; 332 333 void 334 uhci_busreset(sc) 335 uhci_softc_t *sc; 336 { 337 UHCICMD(sc, UHCI_CMD_GRESET); /* global reset */ 338 usb_delay_ms(&sc->sc_bus, USB_BUS_RESET_DELAY); /* wait a little */ 339 UHCICMD(sc, 0); /* do nothing */ 340 } 341 342 usbd_status 343 uhci_init(sc) 344 uhci_softc_t *sc; 345 { 346 usbd_status err; 347 int i, j; 348 uhci_soft_qh_t *csqh, *bsqh, *sqh; 349 uhci_soft_td_t *std; 350 351 DPRINTFN(1,("uhci_init: start\n")); 352 353 #ifdef UHCI_DEBUG 354 if (uhcidebug > 2) 355 uhci_dumpregs(sc); 356 #endif 357 358 uhci_run(sc, 0); /* stop the controller */ 359 UWRITE2(sc, UHCI_INTR, 0); /* disable interrupts */ 360 361 uhci_busreset(sc); 362 363 /* Allocate and initialize real frame array. */ 364 err = usb_allocmem(&sc->sc_bus, 365 UHCI_FRAMELIST_COUNT * sizeof(uhci_physaddr_t), 366 UHCI_FRAMELIST_ALIGN, &sc->sc_dma); 367 if (err) 368 return (err); 369 sc->sc_pframes = KERNADDR(&sc->sc_dma); 370 UWRITE2(sc, UHCI_FRNUM, 0); /* set frame number to 0 */ 371 UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma)); /* set frame list*/ 372 373 /* Allocate the dummy QH where bulk traffic will be queued. */ 374 bsqh = uhci_alloc_sqh(sc); 375 if (bsqh == NULL) 376 return (USBD_NOMEM); 377 bsqh->qh.qh_hlink = LE(UHCI_PTR_T); /* end of QH chain */ 378 bsqh->qh.qh_elink = LE(UHCI_PTR_T); 379 sc->sc_bulk_start = sc->sc_bulk_end = bsqh; 380 381 /* Allocate the dummy QH where control traffic will be queued. */ 382 csqh = uhci_alloc_sqh(sc); 383 if (csqh == NULL) 384 return (USBD_NOMEM); 385 csqh->hlink = bsqh; 386 csqh->qh.qh_hlink = LE(bsqh->physaddr | UHCI_PTR_Q); 387 csqh->qh.qh_elink = LE(UHCI_PTR_T); 388 sc->sc_ctl_start = sc->sc_ctl_end = csqh; 389 390 /* 391 * Make all (virtual) frame list pointers point to the interrupt 392 * queue heads and the interrupt queue heads at the control 393 * queue head and point the physical frame list to the virtual. 394 */ 395 for(i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 396 std = uhci_alloc_std(sc); 397 sqh = uhci_alloc_sqh(sc); 398 if (std == NULL || sqh == NULL) 399 return (USBD_NOMEM); 400 std->link.sqh = sqh; 401 std->td.td_link = LE(sqh->physaddr | UHCI_PTR_Q); 402 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 403 std->td.td_token = LE(0); 404 std->td.td_buffer = LE(0); 405 sqh->hlink = csqh; 406 sqh->qh.qh_hlink = LE(csqh->physaddr | UHCI_PTR_Q); 407 sqh->elink = 0; 408 sqh->qh.qh_elink = LE(UHCI_PTR_T); 409 sc->sc_vframes[i].htd = std; 410 sc->sc_vframes[i].etd = std; 411 sc->sc_vframes[i].hqh = sqh; 412 sc->sc_vframes[i].eqh = sqh; 413 for (j = i; 414 j < UHCI_FRAMELIST_COUNT; 415 j += UHCI_VFRAMELIST_COUNT) 416 sc->sc_pframes[j] = LE(std->physaddr); 417 } 418 419 LIST_INIT(&sc->sc_intrhead); 420 421 /* Set up the bus struct. */ 422 sc->sc_bus.methods = &uhci_bus_methods; 423 sc->sc_bus.pipe_size = sizeof(struct uhci_pipe); 424 425 sc->sc_suspend = PWR_RESUME; 426 sc->sc_powerhook = powerhook_establish(uhci_power, sc); 427 428 DPRINTFN(1,("uhci_init: enabling\n")); 429 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 430 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* enable interrupts */ 431 432 return (uhci_run(sc, 1)); /* and here we go... */ 433 } 434 435 #if defined(__NetBSD__) || defined(__OpenBSD__) 436 int 437 uhci_activate(self, act) 438 device_ptr_t self; 439 enum devact act; 440 { 441 struct uhci_softc *sc = (struct uhci_softc *)self; 442 int rv = 0; 443 444 switch (act) { 445 case DVACT_ACTIVATE: 446 return (EOPNOTSUPP); 447 break; 448 449 case DVACT_DEACTIVATE: 450 if (sc->sc_child != NULL) 451 rv = config_deactivate(sc->sc_child); 452 break; 453 } 454 return (rv); 455 } 456 457 int 458 uhci_detach(sc, flags) 459 struct uhci_softc *sc; 460 int flags; 461 { 462 int rv = 0; 463 464 if (sc->sc_child != NULL) 465 rv = config_detach(sc->sc_child, flags); 466 467 if (rv != 0) 468 return (rv); 469 470 powerhook_disestablish(sc->sc_powerhook); 471 /* free data structures XXX */ 472 473 return (rv); 474 } 475 #endif 476 477 usbd_status 478 uhci_allocm(bus, dma, size) 479 struct usbd_bus *bus; 480 usb_dma_t *dma; 481 u_int32_t size; 482 { 483 return (usb_allocmem(&((struct uhci_softc *)bus)->sc_bus, size, 0, 484 dma)); 485 } 486 487 void 488 uhci_freem(bus, dma) 489 struct usbd_bus *bus; 490 usb_dma_t *dma; 491 { 492 usb_freemem(&((struct uhci_softc *)bus)->sc_bus, dma); 493 } 494 495 #if defined(__NetBSD__) 496 /* 497 * Handle suspend/resume. 498 * 499 * We need to switch to polling mode here, because this routine is 500 * called from an intterupt context. This is all right since we 501 * are almost suspended anyway. 502 */ 503 void 504 uhci_power(why, v) 505 int why; 506 void *v; 507 { 508 uhci_softc_t *sc = v; 509 int cmd; 510 int s; 511 512 s = splusb(); 513 cmd = UREAD2(sc, UHCI_CMD); 514 515 DPRINTF(("uhci_power: sc=%p, why=%d (was %d), cmd=0x%x\n", 516 sc, why, sc->sc_suspend, cmd)); 517 518 if (why != PWR_RESUME) { 519 #ifdef UHCI_DEBUG 520 if (uhcidebug > 2) 521 uhci_dumpregs(sc); 522 #endif 523 if (sc->sc_has_timo != NULL) 524 usb_untimeout(uhci_timo, sc->sc_has_timo, 525 sc->sc_has_timo->timo_handle); 526 sc->sc_bus.use_polling++; 527 uhci_run(sc, 0); /* stop the controller */ 528 UHCICMD(sc, cmd | UHCI_CMD_EGSM); /* enter global suspend */ 529 usb_delay_ms(&sc->sc_bus, USB_RESUME_WAIT); 530 sc->sc_suspend = why; 531 sc->sc_bus.use_polling--; 532 DPRINTF(("uhci_power: cmd=0x%x\n", UREAD2(sc, UHCI_CMD))); 533 } else { 534 /* 535 * XXX We should really do much more here in case the 536 * controller registers have been lost and BIOS has 537 * not restored them. 538 */ 539 #ifdef DIAGNOSTIC 540 if (sc->sc_suspend == PWR_RESUME) 541 printf("uhci_power: weird, resume without suspend.\n"); 542 #endif 543 sc->sc_bus.use_polling++; 544 sc->sc_suspend = why; 545 if (cmd & UHCI_CMD_RS) 546 uhci_run(sc, 0); /* in case BIOS has started it */ 547 UHCICMD(sc, cmd | UHCI_CMD_FGR); /* force global resume */ 548 usb_delay_ms(&sc->sc_bus, USB_RESUME_DELAY); 549 UHCICMD(sc, cmd & ~UHCI_CMD_EGSM); /* back to normal */ 550 UWRITE2(sc, UHCI_INTR, UHCI_INTR_TOCRCIE | UHCI_INTR_RIE | 551 UHCI_INTR_IOCE | UHCI_INTR_SPIE); /* re-enable intrs */ 552 uhci_run(sc, 1); /* and start traffic again */ 553 usb_delay_ms(&sc->sc_bus, USB_RESUME_RECOVERY); 554 sc->sc_bus.use_polling--; 555 if (sc->sc_has_timo != NULL) 556 usb_timeout(uhci_timo, sc->sc_has_timo, 557 sc->sc_ival, sc->sc_has_timo->timo_handle); 558 #ifdef UHCI_DEBUG 559 if (uhcidebug > 2) 560 uhci_dumpregs(sc); 561 #endif 562 } 563 splx(s); 564 } 565 #endif /* defined(__NetBSD__) */ 566 567 #ifdef UHCI_DEBUG 568 static void 569 uhci_dumpregs(sc) 570 uhci_softc_t *sc; 571 { 572 DPRINTFN(-1,("%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, " 573 "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n", 574 USBDEVNAME(sc->sc_bus.bdev), 575 UREAD2(sc, UHCI_CMD), 576 UREAD2(sc, UHCI_STS), 577 UREAD2(sc, UHCI_INTR), 578 UREAD2(sc, UHCI_FRNUM), 579 UREAD4(sc, UHCI_FLBASEADDR), 580 UREAD1(sc, UHCI_SOF), 581 UREAD2(sc, UHCI_PORTSC1), 582 UREAD2(sc, UHCI_PORTSC2))); 583 } 584 585 void 586 uhci_dump_td(p) 587 uhci_soft_td_t *p; 588 { 589 DPRINTFN(-1,("TD(%p) at %08lx = link=0x%08lx status=0x%08lx " 590 "token=0x%08lx buffer=0x%08lx\n", 591 p, (long)p->physaddr, 592 (long)LE(p->td.td_link), 593 (long)LE(p->td.td_status), 594 (long)LE(p->td.td_token), 595 (long)LE(p->td.td_buffer))); 596 DPRINTFN(-1,(" %b %b,errcnt=%d,actlen=%d pid=%02x,addr=%d,endpt=%d," 597 "D=%d,maxlen=%d\n", 598 (int)LE(p->td.td_link), 599 "\20\1T\2Q\3VF", 600 (int)LE(p->td.td_status), 601 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 602 "STALLED\30ACTIVE\31IOC\32ISO\33LS\36SPD", 603 UHCI_TD_GET_ERRCNT(LE(p->td.td_status)), 604 UHCI_TD_GET_ACTLEN(LE(p->td.td_status)), 605 UHCI_TD_GET_PID(LE(p->td.td_token)), 606 UHCI_TD_GET_DEVADDR(LE(p->td.td_token)), 607 UHCI_TD_GET_ENDPT(LE(p->td.td_token)), 608 UHCI_TD_GET_DT(LE(p->td.td_token)), 609 UHCI_TD_GET_MAXLEN(LE(p->td.td_token)))); 610 } 611 612 void 613 uhci_dump_qh(sqh) 614 uhci_soft_qh_t *sqh; 615 { 616 DPRINTFN(-1,("QH(%p) at %08x: hlink=%08x elink=%08x\n", sqh, 617 (int)sqh->physaddr, LE(sqh->qh.qh_hlink), LE(sqh->qh.qh_elink))); 618 } 619 620 621 #if 0 622 void 623 uhci_dump() 624 { 625 uhci_softc_t *sc = uhci; 626 627 uhci_dumpregs(sc); 628 printf("intrs=%d\n", sc->sc_bus.no_intrs); 629 printf("framelist[i].link = %08x\n", sc->sc_framelist[0].link); 630 uhci_dump_qh(sc->sc_ctl_start->qh.hlink); 631 } 632 #endif 633 634 635 void 636 uhci_dump_qhs(sqh) 637 uhci_soft_qh_t *sqh; 638 { 639 uhci_dump_qh(sqh); 640 641 /* uhci_dump_qhs displays all the QHs and TDs from the given QH onwards 642 * Traverses sideways first, then down. 643 * 644 * QH1 645 * QH2 646 * No QH 647 * TD2.1 648 * TD2.2 649 * TD1.1 650 * etc. 651 * 652 * TD2.x being the TDs queued at QH2 and QH1 being referenced from QH1. 653 */ 654 655 656 if (sqh->hlink != NULL && !(sqh->qh.qh_hlink & UHCI_PTR_T)) 657 uhci_dump_qhs(sqh->hlink); 658 else 659 DPRINTF(("No QH\n")); 660 661 if (sqh->elink != NULL && !(sqh->qh.qh_elink & UHCI_PTR_T)) 662 uhci_dump_tds(sqh->elink); 663 else 664 DPRINTF(("No TD\n")); 665 } 666 667 void 668 uhci_dump_tds(std) 669 uhci_soft_td_t *std; 670 { 671 uhci_soft_td_t *td; 672 673 for(td = std; td != NULL; td = td->link.std) { 674 uhci_dump_td(td); 675 676 /* Check whether the link pointer in this TD marks 677 * the link pointer as end of queue. This avoids 678 * printing the free list in case the queue/TD has 679 * already been moved there (seatbelt). 680 */ 681 if (td->td.td_link & UHCI_PTR_T || 682 td->td.td_link == 0) 683 break; 684 } 685 } 686 #endif 687 688 /* 689 * This routine is executed periodically and simulates interrupts 690 * from the root controller interrupt pipe for port status change. 691 */ 692 void 693 uhci_timo(addr) 694 void *addr; 695 { 696 usbd_xfer_handle xfer = addr; 697 usbd_pipe_handle pipe = xfer->pipe; 698 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 699 int s; 700 u_char *p; 701 702 DPRINTFN(20, ("uhci_timo\n")); 703 704 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 705 706 p = KERNADDR(&xfer->dmabuf); 707 p[0] = 0; 708 if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 709 p[0] |= 1<<1; 710 if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC|UHCI_PORTSC_OCIC)) 711 p[0] |= 1<<2; 712 if (p[0] == 0) 713 /* No change, try again in a while */ 714 return; 715 716 xfer->actlen = 1; 717 xfer->status = USBD_NORMAL_COMPLETION; 718 s = splusb(); 719 xfer->hcpriv = 0; 720 xfer->device->bus->intr_context++; 721 usb_transfer_complete(xfer); 722 xfer->device->bus->intr_context--; 723 splx(s); 724 } 725 726 void 727 uhci_root_intr_done(xfer) 728 usbd_xfer_handle xfer; 729 { 730 } 731 732 733 void 734 uhci_lock_frames(sc) 735 uhci_softc_t *sc; 736 { 737 int s = splusb(); 738 739 while (sc->sc_vflock) { 740 sc->sc_vflock |= UHCI_WANT_LOCK; 741 tsleep(&sc->sc_vflock, PRIBIO, "uhcqhl", 0); 742 } 743 sc->sc_vflock = UHCI_HAS_LOCK; 744 splx(s); 745 } 746 747 void 748 uhci_unlock_frames(sc) 749 uhci_softc_t *sc; 750 { 751 int s = splusb(); 752 753 sc->sc_vflock &= ~UHCI_HAS_LOCK; 754 if (sc->sc_vflock & UHCI_WANT_LOCK) 755 wakeup(&sc->sc_vflock); 756 splx(s); 757 } 758 759 /* 760 * Allocate an interrupt information struct. A free list is kept 761 * for fast allocation. 762 */ 763 uhci_intr_info_t * 764 uhci_alloc_intr_info(sc) 765 uhci_softc_t *sc; 766 { 767 uhci_intr_info_t *ii; 768 769 ii = LIST_FIRST(&uhci_ii_free); 770 if (ii) 771 LIST_REMOVE(ii, list); 772 else { 773 ii = malloc(sizeof(uhci_intr_info_t), M_USBHC, M_NOWAIT); 774 } 775 ii->sc = sc; 776 #if defined(__FreeBSD__) 777 callout_handle_init(&ii->timeout_handle); 778 #endif 779 780 return ii; 781 } 782 783 void 784 uhci_free_intr_info(ii) 785 uhci_intr_info_t *ii; 786 { 787 LIST_INSERT_HEAD(&uhci_ii_free, ii, list); /* and put on free list */ 788 } 789 790 /* Add control QH, called at splusb(). */ 791 void 792 uhci_add_ctrl(sc, sqh) 793 uhci_softc_t *sc; 794 uhci_soft_qh_t *sqh; 795 { 796 uhci_soft_qh_t *eqh; 797 798 SPLUSBCHECK; 799 800 DPRINTFN(10, ("uhci_add_ctrl: sqh=%p\n", sqh)); 801 eqh = sc->sc_ctl_end; 802 sqh->hlink = eqh->hlink; 803 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 804 eqh->hlink = sqh; 805 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 806 sc->sc_ctl_end = sqh; 807 } 808 809 /* Remove control QH, called at splusb(). */ 810 void 811 uhci_remove_ctrl(sc, sqh) 812 uhci_softc_t *sc; 813 uhci_soft_qh_t *sqh; 814 { 815 uhci_soft_qh_t *pqh; 816 817 SPLUSBCHECK; 818 819 DPRINTFN(10, ("uhci_remove_ctrl: sqh=%p\n", sqh)); 820 for (pqh = sc->sc_ctl_start; pqh->hlink != sqh; pqh=pqh->hlink) 821 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 822 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 823 printf("uhci_remove_ctrl: QH not found\n"); 824 return; 825 } 826 #else 827 ; 828 #endif 829 pqh->hlink = sqh->hlink; 830 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 831 if (sc->sc_ctl_end == sqh) 832 sc->sc_ctl_end = pqh; 833 } 834 835 /* Add bulk QH, called at splusb(). */ 836 void 837 uhci_add_bulk(sc, sqh) 838 uhci_softc_t *sc; 839 uhci_soft_qh_t *sqh; 840 { 841 uhci_soft_qh_t *eqh; 842 843 SPLUSBCHECK; 844 845 DPRINTFN(10, ("uhci_add_bulk: sqh=%p\n", sqh)); 846 eqh = sc->sc_bulk_end; 847 sqh->hlink = eqh->hlink; 848 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 849 eqh->hlink = sqh; 850 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 851 sc->sc_bulk_end = sqh; 852 } 853 854 /* Remove bulk QH, called at splusb(). */ 855 void 856 uhci_remove_bulk(sc, sqh) 857 uhci_softc_t *sc; 858 uhci_soft_qh_t *sqh; 859 { 860 uhci_soft_qh_t *pqh; 861 862 SPLUSBCHECK; 863 864 DPRINTFN(10, ("uhci_remove_bulk: sqh=%p\n", sqh)); 865 for (pqh = sc->sc_bulk_start; pqh->hlink != sqh; pqh = pqh->hlink) 866 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 867 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 868 printf("uhci_remove_bulk: QH not found\n"); 869 return; 870 } 871 #else 872 ; 873 #endif 874 pqh->hlink = sqh->hlink; 875 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 876 if (sc->sc_bulk_end == sqh) 877 sc->sc_bulk_end = pqh; 878 } 879 880 int 881 uhci_intr(arg) 882 void *arg; 883 { 884 uhci_softc_t *sc = arg; 885 int status; 886 int ack; 887 uhci_intr_info_t *ii; 888 889 #ifdef UHCI_DEBUG 890 if (uhcidebug > 15) { 891 DPRINTF(("%s: uhci_intr\n", USBDEVNAME(sc->sc_bus.bdev))); 892 uhci_dumpregs(sc); 893 } 894 #endif 895 896 status = UREAD2(sc, UHCI_STS); 897 if (status == 0) /* The interrupt was not for us. */ 898 return (0); 899 900 #if defined(DIAGNOSTIC) && defined(__NetBSD__) 901 if (sc->sc_suspend != PWR_RESUME) 902 printf("uhci_intr: suspended sts=0x%x\n", status); 903 #endif 904 905 ack = 0; 906 if (status & UHCI_STS_USBINT) 907 ack |= UHCI_STS_USBINT; 908 if (status & UHCI_STS_USBEI) 909 ack |= UHCI_STS_USBEI; 910 if (status & UHCI_STS_RD) { 911 ack |= UHCI_STS_RD; 912 printf("%s: resume detect\n", USBDEVNAME(sc->sc_bus.bdev)); 913 } 914 if (status & UHCI_STS_HSE) { 915 ack |= UHCI_STS_HSE; 916 printf("%s: host controller process error\n", 917 USBDEVNAME(sc->sc_bus.bdev)); 918 } 919 if (status & UHCI_STS_HCPE) { 920 ack |= UHCI_STS_HCPE; 921 printf("%s: host system error\n", USBDEVNAME(sc->sc_bus.bdev)); 922 } 923 if (status & UHCI_STS_HCH) { 924 /* no acknowledge needed */ 925 printf("%s: host controller halted\n", 926 USBDEVNAME(sc->sc_bus.bdev)); 927 } 928 929 if (ack) /* acknowledge the ints */ 930 UWRITE2(sc, UHCI_STS, ack); 931 else /* nothing to acknowledge */ 932 return (0); 933 934 sc->sc_bus.intr_context++; 935 sc->sc_bus.no_intrs++; 936 937 /* 938 * Interrupts on UHCI really suck. When the host controller 939 * interrupts because a transfer is completed there is no 940 * way of knowing which transfer it was. You can scan down 941 * the TDs and QHs of the previous frame to limit the search, 942 * but that assumes that the interrupt was not delayed by more 943 * than 1 ms, which may not always be true (e.g. after debug 944 * output on a slow console). 945 * We scan all interrupt descriptors to see if any have 946 * completed. 947 */ 948 for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list)) 949 uhci_check_intr(sc, ii); 950 951 DPRINTFN(10, ("%s: uhci_intr: exit\n", USBDEVNAME(sc->sc_bus.bdev))); 952 953 sc->sc_bus.intr_context--; 954 955 return (1); 956 } 957 958 /* Check for an interrupt. */ 959 void 960 uhci_check_intr(sc, ii) 961 uhci_softc_t *sc; 962 uhci_intr_info_t *ii; 963 { 964 uhci_soft_td_t *std, *lstd; 965 u_int32_t status; 966 967 DPRINTFN(15, ("uhci_check_intr: ii=%p\n", ii)); 968 #ifdef DIAGNOSTIC 969 if (ii == NULL) { 970 printf("uhci_check_intr: no ii? %p\n", ii); 971 return; 972 } 973 #endif 974 if (ii->stdstart == NULL) 975 return; 976 lstd = ii->stdend; 977 #ifdef DIAGNOSTIC 978 if (lstd == NULL) { 979 printf("uhci_check_intr: std==0\n"); 980 return; 981 } 982 #endif 983 /* 984 * If the last TD is still active we need to check whether there 985 * is a an error somewhere in the middle, or whether there was a 986 * short packet (SPD and not ACTIVE). 987 */ 988 if (LE(lstd->td.td_status) & UHCI_TD_ACTIVE) { 989 DPRINTFN(15, ("uhci_check_intr: active ii=%p\n", ii)); 990 for (std = ii->stdstart; std != lstd; std = std->link.std) { 991 status = LE(std->td.td_status); 992 if ((status & UHCI_TD_STALLED) || 993 (status & (UHCI_TD_SPD | UHCI_TD_ACTIVE)) == 994 UHCI_TD_SPD) 995 goto done; 996 } 997 DPRINTFN(15, ("uhci_check_intr: ii=%p std=%p still active\n", 998 ii, ii->stdstart)); 999 return; 1000 } 1001 done: 1002 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1003 uhci_idone(ii); 1004 } 1005 1006 /* Called at splusb() */ 1007 void 1008 uhci_idone(ii) 1009 uhci_intr_info_t *ii; 1010 { 1011 usbd_xfer_handle xfer = ii->xfer; 1012 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1013 uhci_soft_td_t *std; 1014 u_int32_t status = 0, nstatus; 1015 int actlen; 1016 1017 #ifdef DIAGNOSTIC 1018 { 1019 int s = splhigh(); 1020 if (ii->isdone) { 1021 splx(s); 1022 printf("uhci_idone: ii=%p is done!\n", ii); 1023 return; 1024 } 1025 ii->isdone = 1; 1026 splx(s); 1027 } 1028 #endif 1029 1030 if (xfer->status == USBD_CANCELLED || 1031 xfer->status == USBD_TIMEOUT) { 1032 DPRINTF(("uhci_idone: aborted xfer=%p\n", xfer)); 1033 return; 1034 } 1035 1036 if (xfer->nframes != 0) { 1037 /* Isoc transfer, do things differently. */ 1038 uhci_soft_td_t **stds = upipe->u.iso.stds; 1039 int i, n, nframes; 1040 1041 DPRINTFN(5,("uhci_idone: ii=%p isoc ready\n", ii)); 1042 1043 nframes = xfer->nframes; 1044 actlen = 0; 1045 n = xfer->hcprivint; 1046 for (i = 0; i < nframes; i++) { 1047 std = stds[n]; 1048 #ifdef UHCI_DEBUG 1049 if (uhcidebug > 5) { 1050 DPRINTFN(-1,("uhci_idone: isoc TD %d\n", i)); 1051 uhci_dump_td(std); 1052 } 1053 #endif 1054 if (++n >= UHCI_VFRAMELIST_COUNT) 1055 n = 0; 1056 status = LE(std->td.td_status); 1057 actlen += UHCI_TD_GET_ACTLEN(status); 1058 } 1059 upipe->u.iso.inuse -= nframes; 1060 xfer->actlen = actlen; 1061 xfer->status = USBD_NORMAL_COMPLETION; 1062 xfer->hcpriv = ii; 1063 usb_transfer_complete(xfer); 1064 return; 1065 } 1066 1067 #ifdef UHCI_DEBUG 1068 DPRINTFN(10, ("uhci_idone: ii=%p, xfer=%p, pipe=%p ready\n", 1069 ii, xfer, upipe)); 1070 if (uhcidebug > 10) 1071 uhci_dump_tds(ii->stdstart); 1072 #endif 1073 1074 /* The transfer is done, compute actual length and status. */ 1075 actlen = 0; 1076 for (std = ii->stdstart; std != NULL; std = std->link.std) { 1077 nstatus = LE(std->td.td_status); 1078 if (nstatus & UHCI_TD_ACTIVE) 1079 break; 1080 1081 status = nstatus; 1082 if (UHCI_TD_GET_PID(LE(std->td.td_token)) != UHCI_TD_PID_SETUP) 1083 actlen += UHCI_TD_GET_ACTLEN(status); 1084 } 1085 /* If there are left over TDs we need to update the toggle. */ 1086 if (std != NULL) 1087 upipe->nexttoggle = UHCI_TD_GET_DT(LE(std->td.td_token)); 1088 1089 status &= UHCI_TD_ERROR; 1090 DPRINTFN(10, ("uhci_check_intr: actlen=%d, status=0x%x\n", 1091 actlen, status)); 1092 xfer->actlen = actlen; 1093 if (status != 0) { 1094 DPRINTFN((status&UHCI_TD_STALLED)*10, 1095 ("uhci_idone: error, addr=%d, endpt=0x%02x, " 1096 "status 0x%b\n", 1097 xfer->pipe->device->address, 1098 xfer->pipe->endpoint->edesc->bEndpointAddress, 1099 (int)status, 1100 "\20\22BITSTUFF\23CRCTO\24NAK\25BABBLE\26DBUFFER\27" 1101 "STALLED\30ACTIVE")); 1102 if (status == UHCI_TD_STALLED) 1103 xfer->status = USBD_STALLED; 1104 else 1105 xfer->status = USBD_IOERROR; /* more info XXX */ 1106 } else { 1107 xfer->status = USBD_NORMAL_COMPLETION; 1108 } 1109 xfer->hcpriv = ii; 1110 usb_transfer_complete(xfer); 1111 } 1112 1113 /* 1114 * Called when a request does not complete. 1115 */ 1116 void 1117 uhci_timeout(addr) 1118 void *addr; 1119 { 1120 uhci_intr_info_t *ii = addr; 1121 1122 DPRINTF(("uhci_timeout: ii=%p\n", ii)); 1123 1124 #ifdef UHCI_DEBUG 1125 if (uhcidebug > 10) 1126 uhci_dump_tds(ii->stdstart); 1127 #endif 1128 1129 ii->xfer->device->bus->intr_context++; 1130 uhci_abort_xfer(ii->xfer, USBD_TIMEOUT); 1131 ii->xfer->device->bus->intr_context--; 1132 } 1133 1134 /* 1135 * Wait here until controller claims to have an interrupt. 1136 * Then call uhci_intr and return. Use timeout to avoid waiting 1137 * too long. 1138 * Only used during boot when interrupts are not enabled yet. 1139 */ 1140 void 1141 uhci_waitintr(sc, xfer) 1142 uhci_softc_t *sc; 1143 usbd_xfer_handle xfer; 1144 { 1145 int timo = xfer->timeout; 1146 uhci_intr_info_t *ii; 1147 1148 DPRINTFN(10,("uhci_waitintr: timeout = %dms\n", timo)); 1149 1150 xfer->status = USBD_IN_PROGRESS; 1151 for (; timo >= 0; timo--) { 1152 usb_delay_ms(&sc->sc_bus, 1); 1153 DPRINTFN(20,("uhci_waitintr: 0x%04x\n", UREAD2(sc, UHCI_STS))); 1154 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) { 1155 uhci_intr(sc); 1156 if (xfer->status != USBD_IN_PROGRESS) 1157 return; 1158 } 1159 } 1160 1161 /* Timeout */ 1162 DPRINTF(("uhci_waitintr: timeout\n")); 1163 for (ii = LIST_FIRST(&sc->sc_intrhead); 1164 ii != NULL && ii->xfer != xfer; 1165 ii = LIST_NEXT(ii, list)) 1166 ; 1167 #ifdef DIAGNOSTIC 1168 if (ii == NULL) 1169 panic("uhci_waitintr: lost intr_info\n"); 1170 #endif 1171 uhci_idone(ii); 1172 } 1173 1174 void 1175 uhci_poll(bus) 1176 struct usbd_bus *bus; 1177 { 1178 uhci_softc_t *sc = (uhci_softc_t *)bus; 1179 1180 if (UREAD2(sc, UHCI_STS) & UHCI_STS_USBINT) 1181 uhci_intr(sc); 1182 } 1183 1184 #if 0 1185 void 1186 uhci_reset(p) 1187 void *p; 1188 { 1189 uhci_softc_t *sc = p; 1190 int n; 1191 1192 UHCICMD(sc, UHCI_CMD_HCRESET); 1193 /* The reset bit goes low when the controller is done. */ 1194 for (n = 0; n < UHCI_RESET_TIMEOUT && 1195 (UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET); n++) 1196 delay(100); 1197 if (n >= UHCI_RESET_TIMEOUT) 1198 printf("%s: controller did not reset\n", 1199 USBDEVNAME(sc->sc_bus.bdev)); 1200 } 1201 #endif 1202 1203 usbd_status 1204 uhci_run(sc, run) 1205 uhci_softc_t *sc; 1206 int run; 1207 { 1208 int s, n, running; 1209 1210 run = run != 0; 1211 s = splusb(); 1212 DPRINTF(("uhci_run: setting run=%d\n", run)); 1213 UHCICMD(sc, run ? UHCI_CMD_RS : 0); 1214 for(n = 0; n < 10; n++) { 1215 running = !(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH); 1216 /* return when we've entered the state we want */ 1217 if (run == running) { 1218 splx(s); 1219 DPRINTF(("uhci_run: done cmd=0x%x sts=0x%x\n", 1220 UREAD2(sc, UHCI_CMD), UREAD2(sc, UHCI_STS))); 1221 return (USBD_NORMAL_COMPLETION); 1222 } 1223 usb_delay_ms(&sc->sc_bus, 1); 1224 } 1225 splx(s); 1226 printf("%s: cannot %s\n", USBDEVNAME(sc->sc_bus.bdev), 1227 run ? "start" : "stop"); 1228 return (USBD_IOERROR); 1229 } 1230 1231 /* 1232 * Memory management routines. 1233 * uhci_alloc_std allocates TDs 1234 * uhci_alloc_sqh allocates QHs 1235 * These two routines do their own free list management, 1236 * partly for speed, partly because allocating DMAable memory 1237 * has page size granularaity so much memory would be wasted if 1238 * only one TD/QH (32 bytes) was placed in each allocated chunk. 1239 */ 1240 1241 uhci_soft_td_t * 1242 uhci_alloc_std(sc) 1243 uhci_softc_t *sc; 1244 { 1245 uhci_soft_td_t *std; 1246 usbd_status err; 1247 int i, offs; 1248 usb_dma_t dma; 1249 1250 if (sc->sc_freetds == NULL) { 1251 DPRINTFN(2,("uhci_alloc_std: allocating chunk\n")); 1252 err = usb_allocmem(&sc->sc_bus, UHCI_STD_SIZE * UHCI_STD_CHUNK, 1253 UHCI_TD_ALIGN, &dma); 1254 if (err) 1255 return (0); 1256 for(i = 0; i < UHCI_STD_CHUNK; i++) { 1257 offs = i * UHCI_STD_SIZE; 1258 std = (uhci_soft_td_t *)((char *)KERNADDR(&dma) +offs); 1259 std->physaddr = DMAADDR(&dma) + offs; 1260 std->link.std = sc->sc_freetds; 1261 sc->sc_freetds = std; 1262 } 1263 } 1264 std = sc->sc_freetds; 1265 sc->sc_freetds = std->link.std; 1266 memset(&std->td, 0, sizeof(uhci_td_t)); 1267 return std; 1268 } 1269 1270 void 1271 uhci_free_std(sc, std) 1272 uhci_softc_t *sc; 1273 uhci_soft_td_t *std; 1274 { 1275 #ifdef DIAGNOSTIC 1276 #define TD_IS_FREE 0x12345678 1277 if (std->td.td_token == LE(TD_IS_FREE)) { 1278 printf("uhci_free_std: freeing free TD %p\n", std); 1279 return; 1280 } 1281 std->td.td_token = LE(TD_IS_FREE); 1282 #endif 1283 std->link.std = sc->sc_freetds; 1284 sc->sc_freetds = std; 1285 } 1286 1287 uhci_soft_qh_t * 1288 uhci_alloc_sqh(sc) 1289 uhci_softc_t *sc; 1290 { 1291 uhci_soft_qh_t *sqh; 1292 usbd_status err; 1293 int i, offs; 1294 usb_dma_t dma; 1295 1296 if (sc->sc_freeqhs == NULL) { 1297 DPRINTFN(2, ("uhci_alloc_sqh: allocating chunk\n")); 1298 err = usb_allocmem(&sc->sc_bus, UHCI_SQH_SIZE * UHCI_SQH_CHUNK, 1299 UHCI_QH_ALIGN, &dma); 1300 if (err) 1301 return (0); 1302 for(i = 0; i < UHCI_SQH_CHUNK; i++) { 1303 offs = i * UHCI_SQH_SIZE; 1304 sqh = (uhci_soft_qh_t *)((char *)KERNADDR(&dma) +offs); 1305 sqh->physaddr = DMAADDR(&dma) + offs; 1306 sqh->hlink = sc->sc_freeqhs; 1307 sc->sc_freeqhs = sqh; 1308 } 1309 } 1310 sqh = sc->sc_freeqhs; 1311 sc->sc_freeqhs = sqh->hlink; 1312 memset(&sqh->qh, 0, sizeof(uhci_qh_t)); 1313 return (sqh); 1314 } 1315 1316 void 1317 uhci_free_sqh(sc, sqh) 1318 uhci_softc_t *sc; 1319 uhci_soft_qh_t *sqh; 1320 { 1321 sqh->hlink = sc->sc_freeqhs; 1322 sc->sc_freeqhs = sqh; 1323 } 1324 1325 #if 0 1326 /* 1327 * Enter a list of transfers onto a control queue. 1328 * Called at splusb() 1329 */ 1330 void 1331 uhci_enter_ctl_q(sc, sqh, ii) 1332 uhci_softc_t *sc; 1333 uhci_soft_qh_t *sqh; 1334 uhci_intr_info_t *ii; 1335 { 1336 DPRINTFN(5, ("uhci_enter_ctl_q: sqh=%p\n", sqh)); 1337 1338 } 1339 #endif 1340 1341 void 1342 uhci_free_std_chain(sc, std, stdend) 1343 uhci_softc_t *sc; 1344 uhci_soft_td_t *std; 1345 uhci_soft_td_t *stdend; 1346 { 1347 uhci_soft_td_t *p; 1348 1349 for (; std != stdend; std = p) { 1350 p = std->link.std; 1351 uhci_free_std(sc, std); 1352 } 1353 } 1354 1355 usbd_status 1356 uhci_alloc_std_chain(upipe, sc, len, rd, shortok, dma, sp, ep) 1357 struct uhci_pipe *upipe; 1358 uhci_softc_t *sc; 1359 int len, rd, shortok; 1360 usb_dma_t *dma; 1361 uhci_soft_td_t **sp, **ep; 1362 { 1363 uhci_soft_td_t *p, *lastp; 1364 uhci_physaddr_t lastlink; 1365 int i, ntd, l, tog, maxp; 1366 u_int32_t status; 1367 int addr = upipe->pipe.device->address; 1368 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1369 1370 DPRINTFN(8, ("uhci_alloc_std_chain: addr=%d endpt=%d len=%d ls=%d " 1371 "shortok=%d\n", addr, UE_GET_ADDR(endpt), len, 1372 upipe->pipe.device->lowspeed, shortok)); 1373 if (len == 0) { 1374 *sp = *ep = 0; 1375 DPRINTFN(-1,("uhci_alloc_std_chain: len=0\n")); 1376 return (USBD_NORMAL_COMPLETION); 1377 } 1378 maxp = UGETW(upipe->pipe.endpoint->edesc->wMaxPacketSize); 1379 if (maxp == 0) { 1380 printf("uhci_alloc_std_chain: maxp=0\n"); 1381 return (USBD_INVAL); 1382 } 1383 ntd = (len + maxp - 1) / maxp; 1384 DPRINTFN(10, ("uhci_alloc_std_chain: maxp=%d ntd=%d\n", maxp, ntd)); 1385 tog = upipe->nexttoggle; 1386 if (ntd % 2 == 0) 1387 tog ^= 1; 1388 upipe->nexttoggle = tog ^ 1; 1389 lastp = 0; 1390 lastlink = UHCI_PTR_T; 1391 ntd--; 1392 status = UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) | UHCI_TD_ACTIVE); 1393 if (upipe->pipe.device->lowspeed) 1394 status |= UHCI_TD_LS; 1395 if (shortok) 1396 status |= UHCI_TD_SPD; 1397 for (i = ntd; i >= 0; i--) { 1398 p = uhci_alloc_std(sc); 1399 if (p == NULL) { 1400 uhci_free_std_chain(sc, lastp, 0); 1401 return (USBD_NOMEM); 1402 } 1403 p->link.std = lastp; 1404 if (lastlink == UHCI_PTR_T) 1405 p->td.td_link = LE(lastlink); 1406 else 1407 p->td.td_link = LE(lastlink|UHCI_PTR_VF); 1408 lastp = p; 1409 lastlink = p->physaddr; 1410 p->td.td_status = LE(status); 1411 if (i == ntd) { 1412 /* last TD */ 1413 l = len % maxp; 1414 if (l == 0) l = maxp; 1415 *ep = p; 1416 } else 1417 l = maxp; 1418 p->td.td_token = 1419 LE(rd ? UHCI_TD_IN (l, endpt, addr, tog) : 1420 UHCI_TD_OUT(l, endpt, addr, tog)); 1421 p->td.td_buffer = LE(DMAADDR(dma) + i * maxp); 1422 tog ^= 1; 1423 } 1424 *sp = lastp; 1425 DPRINTFN(10, ("uhci_alloc_std_chain: nexttog=%d\n", 1426 upipe->nexttoggle)); 1427 return (USBD_NORMAL_COMPLETION); 1428 } 1429 1430 void 1431 uhci_device_clear_toggle(pipe) 1432 usbd_pipe_handle pipe; 1433 { 1434 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1435 upipe->nexttoggle = 0; 1436 } 1437 1438 void 1439 uhci_noop(pipe) 1440 usbd_pipe_handle pipe; 1441 { 1442 } 1443 1444 usbd_status 1445 uhci_device_bulk_transfer(xfer) 1446 usbd_xfer_handle xfer; 1447 { 1448 usbd_status err; 1449 1450 /* Insert last in queue. */ 1451 err = usb_insert_transfer(xfer); 1452 if (err) 1453 return (err); 1454 1455 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1456 * start first 1457 */ 1458 return (uhci_device_bulk_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1459 } 1460 1461 usbd_status 1462 uhci_device_bulk_start(xfer) 1463 usbd_xfer_handle xfer; 1464 { 1465 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1466 usbd_device_handle dev = upipe->pipe.device; 1467 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1468 uhci_intr_info_t *ii = upipe->iinfo; 1469 uhci_soft_td_t *data, *dataend; 1470 uhci_soft_qh_t *sqh; 1471 usbd_status err; 1472 int len, isread, endpt; 1473 int s; 1474 1475 DPRINTFN(3, ("uhci_device_bulk_transfer: xfer=%p len=%d flags=%d\n", 1476 xfer, xfer->length, xfer->flags)); 1477 1478 #ifdef DIAGNOSTIC 1479 if (xfer->rqflags & URQ_REQUEST) 1480 panic("uhci_device_bulk_transfer: a request\n"); 1481 #endif 1482 1483 len = xfer->length; 1484 endpt = xfer->pipe->endpoint->edesc->bEndpointAddress; 1485 isread = UE_GET_DIR(endpt) == UE_DIR_IN; 1486 sqh = upipe->u.bulk.sqh; 1487 1488 upipe->u.bulk.isread = isread; 1489 upipe->u.bulk.length = len; 1490 1491 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1492 xfer->flags & USBD_SHORT_XFER_OK, 1493 &xfer->dmabuf, &data, &dataend); 1494 if (err) 1495 return (err); 1496 dataend->td.td_status |= LE(UHCI_TD_IOC); 1497 1498 #ifdef UHCI_DEBUG 1499 if (uhcidebug > 8) { 1500 DPRINTF(("uhci_device_bulk_transfer: data(1)\n")); 1501 uhci_dump_tds(data); 1502 } 1503 #endif 1504 1505 /* Set up interrupt info. */ 1506 ii->xfer = xfer; 1507 ii->stdstart = data; 1508 ii->stdend = dataend; 1509 #if defined(__FreeBSD__) 1510 callout_handle_init(&ii->timeout_handle); 1511 #endif 1512 #ifdef DIAGNOSTIC 1513 if (!ii->isdone) { 1514 printf("uhci_device_bulk_transfer: not done, ii=%p\n", ii); 1515 } 1516 ii->isdone = 0; 1517 #endif 1518 1519 sqh->elink = data; 1520 sqh->qh.qh_elink = LE(data->physaddr); 1521 sqh->intr_info = ii; 1522 1523 s = splusb(); 1524 uhci_add_bulk(sc, sqh); 1525 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1526 1527 if (xfer->timeout && !sc->sc_bus.use_polling) { 1528 usb_timeout(uhci_timeout, ii, MS_TO_TICKS(xfer->timeout), 1529 ii->timeout_handle); 1530 } 1531 splx(s); 1532 1533 #ifdef UHCI_DEBUG 1534 if (uhcidebug > 10) { 1535 DPRINTF(("uhci_device_bulk_transfer: data(2)\n")); 1536 uhci_dump_tds(data); 1537 } 1538 #endif 1539 1540 if (sc->sc_bus.use_polling) 1541 uhci_waitintr(sc, xfer); 1542 1543 return (USBD_IN_PROGRESS); 1544 } 1545 1546 /* Abort a device bulk request. */ 1547 void 1548 uhci_device_bulk_abort(xfer) 1549 usbd_xfer_handle xfer; 1550 { 1551 DPRINTF(("uhci_device_bulk_abort:\n")); 1552 uhci_abort_xfer(xfer, USBD_CANCELLED); 1553 } 1554 1555 void 1556 uhci_abort_xfer(xfer, status) 1557 usbd_xfer_handle xfer; 1558 usbd_status status; 1559 { 1560 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1561 uhci_intr_info_t *ii = upipe->iinfo; 1562 uhci_soft_td_t *std; 1563 1564 DPRINTFN(1,("uhci_abort_xfer: xfer=%p, status=%d\n", xfer, status)); 1565 1566 /* Make interrupt routine ignore it, */ 1567 xfer->status = status; 1568 1569 /* don't timeout, */ 1570 usb_untimeout(uhci_timeout, ii, ii->timeout_handle); 1571 1572 /* make hardware ignore it, */ 1573 for (std = ii->stdstart; std != 0; std = std->link.std) 1574 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 1575 1576 xfer->hcpriv = ii; 1577 1578 /* make sure hardware has completed, */ 1579 if (xfer->device->bus->intr_context) { 1580 /* We have no process context, so we can't use tsleep(). */ 1581 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 1582 } else { 1583 #if defined(DIAGNOSTIC) && defined(__i386__) && defined(__FreeBSD__) 1584 KASSERT(intr_nesting_level == 0, 1585 ("ohci_abort_req in interrupt context")); 1586 #endif 1587 usb_delay_ms(xfer->pipe->device->bus, 1); 1588 /* and call final part of interrupt handler. */ 1589 uhci_abort_xfer_end(xfer); 1590 } 1591 } 1592 1593 void 1594 uhci_abort_xfer_end(v) 1595 void *v; 1596 { 1597 usbd_xfer_handle xfer = v; 1598 int s; 1599 1600 s = splusb(); 1601 usb_transfer_complete(xfer); 1602 splx(s); 1603 } 1604 1605 /* Close a device bulk pipe. */ 1606 void 1607 uhci_device_bulk_close(pipe) 1608 usbd_pipe_handle pipe; 1609 { 1610 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1611 usbd_device_handle dev = upipe->pipe.device; 1612 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1613 1614 uhci_free_sqh(sc, upipe->u.bulk.sqh); 1615 uhci_free_intr_info(upipe->iinfo); 1616 /* XXX free other resources */ 1617 } 1618 1619 usbd_status 1620 uhci_device_ctrl_transfer(xfer) 1621 usbd_xfer_handle xfer; 1622 { 1623 usbd_status err; 1624 1625 /* Insert last in queue. */ 1626 err = usb_insert_transfer(xfer); 1627 if (err) 1628 return (err); 1629 1630 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1631 * start first 1632 */ 1633 return (uhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1634 } 1635 1636 usbd_status 1637 uhci_device_ctrl_start(xfer) 1638 usbd_xfer_handle xfer; 1639 { 1640 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 1641 usbd_status err; 1642 1643 #ifdef DIAGNOSTIC 1644 if (!(xfer->rqflags & URQ_REQUEST)) 1645 panic("uhci_device_ctrl_transfer: not a request\n"); 1646 #endif 1647 1648 err = uhci_device_request(xfer); 1649 if (err) 1650 return (err); 1651 1652 if (sc->sc_bus.use_polling) 1653 uhci_waitintr(sc, xfer); 1654 return (USBD_IN_PROGRESS); 1655 } 1656 1657 usbd_status 1658 uhci_device_intr_transfer(xfer) 1659 usbd_xfer_handle xfer; 1660 { 1661 usbd_status err; 1662 1663 /* Insert last in queue. */ 1664 err = usb_insert_transfer(xfer); 1665 if (err) 1666 return (err); 1667 1668 /* Pipe isn't running (otherwise err would be USBD_INPROG), 1669 * start first 1670 */ 1671 return (uhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 1672 } 1673 1674 usbd_status 1675 uhci_device_intr_start(xfer) 1676 usbd_xfer_handle xfer; 1677 { 1678 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1679 usbd_device_handle dev = upipe->pipe.device; 1680 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1681 uhci_intr_info_t *ii = upipe->iinfo; 1682 uhci_soft_td_t *data, *dataend; 1683 uhci_soft_qh_t *sqh; 1684 usbd_status err; 1685 int i, s; 1686 1687 DPRINTFN(3,("uhci_device_intr_transfer: xfer=%p len=%d flags=%d\n", 1688 xfer, xfer->length, xfer->flags)); 1689 1690 #ifdef DIAGNOSTIC 1691 if (xfer->rqflags & URQ_REQUEST) 1692 panic("uhci_device_intr_transfer: a request\n"); 1693 #endif 1694 1695 err = uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 1696 xfer->flags & USBD_SHORT_XFER_OK, 1697 &xfer->dmabuf, &data, &dataend); 1698 if (err) 1699 return (err); 1700 dataend->td.td_status |= LE(UHCI_TD_IOC); 1701 1702 #ifdef UHCI_DEBUG 1703 if (uhcidebug > 10) { 1704 DPRINTF(("uhci_device_intr_transfer: data(1)\n")); 1705 uhci_dump_tds(data); 1706 uhci_dump_qh(upipe->u.intr.qhs[0]); 1707 } 1708 #endif 1709 1710 s = splusb(); 1711 /* Set up interrupt info. */ 1712 ii->xfer = xfer; 1713 ii->stdstart = data; 1714 ii->stdend = dataend; 1715 #if defined(__FreeBSD__) 1716 callout_handle_init(&ii->timeout_handle); 1717 #endif 1718 #ifdef DIAGNOSTIC 1719 if (!ii->isdone) { 1720 printf("uhci_device_intr_transfer: not done, ii=%p\n", ii); 1721 } 1722 ii->isdone = 0; 1723 #endif 1724 1725 DPRINTFN(10,("uhci_device_intr_transfer: qhs[0]=%p\n", 1726 upipe->u.intr.qhs[0])); 1727 for (i = 0; i < upipe->u.intr.npoll; i++) { 1728 sqh = upipe->u.intr.qhs[i]; 1729 sqh->elink = data; 1730 sqh->qh.qh_elink = LE(data->physaddr); 1731 } 1732 splx(s); 1733 1734 #ifdef UHCI_DEBUG 1735 if (uhcidebug > 10) { 1736 DPRINTF(("uhci_device_intr_transfer: data(2)\n")); 1737 uhci_dump_tds(data); 1738 uhci_dump_qh(upipe->u.intr.qhs[0]); 1739 } 1740 #endif 1741 1742 return (USBD_IN_PROGRESS); 1743 } 1744 1745 /* Abort a device control request. */ 1746 void 1747 uhci_device_ctrl_abort(xfer) 1748 usbd_xfer_handle xfer; 1749 { 1750 DPRINTF(("uhci_device_ctrl_abort:\n")); 1751 uhci_abort_xfer(xfer, USBD_CANCELLED); 1752 } 1753 1754 /* Close a device control pipe. */ 1755 void 1756 uhci_device_ctrl_close(pipe) 1757 usbd_pipe_handle pipe; 1758 { 1759 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1760 1761 uhci_free_intr_info(upipe->iinfo); 1762 /* XXX free other resources? */ 1763 } 1764 1765 /* Abort a device interrupt request. */ 1766 void 1767 uhci_device_intr_abort(xfer) 1768 usbd_xfer_handle xfer; 1769 { 1770 DPRINTFN(1,("uhci_device_intr_abort: xfer=%p\n", xfer)); 1771 if (xfer->pipe->intrxfer == xfer) { 1772 DPRINTFN(1,("uhci_device_intr_abort: remove\n")); 1773 xfer->pipe->intrxfer = 0; 1774 } 1775 uhci_abort_xfer(xfer, USBD_CANCELLED); 1776 } 1777 1778 /* Close a device interrupt pipe. */ 1779 void 1780 uhci_device_intr_close(pipe) 1781 usbd_pipe_handle pipe; 1782 { 1783 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 1784 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 1785 int i, s, npoll; 1786 1787 upipe->iinfo->stdstart = 0; /* inactive */ 1788 1789 /* Unlink descriptors from controller data structures. */ 1790 npoll = upipe->u.intr.npoll; 1791 uhci_lock_frames(sc); 1792 for (i = 0; i < npoll; i++) 1793 uhci_remove_intr(sc, upipe->u.intr.qhs[i]->pos, 1794 upipe->u.intr.qhs[i]); 1795 uhci_unlock_frames(sc); 1796 1797 /* 1798 * We now have to wait for any activity on the physical 1799 * descriptors to stop. 1800 */ 1801 usb_delay_ms(&sc->sc_bus, 2); 1802 1803 for(i = 0; i < npoll; i++) 1804 uhci_free_sqh(sc, upipe->u.intr.qhs[i]); 1805 free(upipe->u.intr.qhs, M_USBHC); 1806 1807 s = splusb(); 1808 LIST_REMOVE(upipe->iinfo, list); /* remove from active list */ 1809 splx(s); 1810 uhci_free_intr_info(upipe->iinfo); 1811 1812 /* XXX free other resources */ 1813 } 1814 1815 usbd_status 1816 uhci_device_request(xfer) 1817 usbd_xfer_handle xfer; 1818 { 1819 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1820 usb_device_request_t *req = &xfer->request; 1821 usbd_device_handle dev = upipe->pipe.device; 1822 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1823 int addr = dev->address; 1824 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 1825 uhci_intr_info_t *ii = upipe->iinfo; 1826 uhci_soft_td_t *setup, *data, *stat, *next, *dataend; 1827 uhci_soft_qh_t *sqh; 1828 int len; 1829 u_int32_t ls; 1830 usbd_status err; 1831 int isread; 1832 int s; 1833 1834 DPRINTFN(3,("uhci_device_control type=0x%02x, request=0x%02x, " 1835 "wValue=0x%04x, wIndex=0x%04x len=%d, addr=%d, endpt=%d\n", 1836 req->bmRequestType, req->bRequest, UGETW(req->wValue), 1837 UGETW(req->wIndex), UGETW(req->wLength), 1838 addr, endpt)); 1839 1840 ls = dev->lowspeed ? UHCI_TD_LS : 0; 1841 isread = req->bmRequestType & UT_READ; 1842 len = UGETW(req->wLength); 1843 1844 setup = upipe->u.ctl.setup; 1845 stat = upipe->u.ctl.stat; 1846 sqh = upipe->u.ctl.sqh; 1847 1848 /* Set up data transaction */ 1849 if (len != 0) { 1850 upipe->nexttoggle = 1; 1851 err = uhci_alloc_std_chain(upipe, sc, len, isread, 1852 xfer->flags & USBD_SHORT_XFER_OK, 1853 &xfer->dmabuf, &data, &dataend); 1854 if (err) 1855 return (err); 1856 next = data; 1857 dataend->link.std = stat; 1858 dataend->td.td_link = LE(stat->physaddr | UHCI_PTR_VF); 1859 } else { 1860 next = stat; 1861 } 1862 upipe->u.ctl.length = len; 1863 1864 memcpy(KERNADDR(&upipe->u.ctl.reqdma), req, sizeof *req); 1865 1866 setup->link.std = next; 1867 setup->td.td_link = LE(next->physaddr | UHCI_PTR_VF); 1868 setup->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | UHCI_TD_ACTIVE); 1869 setup->td.td_token = LE(UHCI_TD_SETUP(sizeof *req, endpt, addr)); 1870 setup->td.td_buffer = LE(DMAADDR(&upipe->u.ctl.reqdma)); 1871 1872 stat->link.std = 0; 1873 stat->td.td_link = LE(UHCI_PTR_T); 1874 stat->td.td_status = LE(UHCI_TD_SET_ERRCNT(3) | ls | 1875 UHCI_TD_ACTIVE | UHCI_TD_IOC); 1876 stat->td.td_token = 1877 LE(isread ? UHCI_TD_OUT(0, endpt, addr, 1) : 1878 UHCI_TD_IN (0, endpt, addr, 1)); 1879 stat->td.td_buffer = LE(0); 1880 1881 #ifdef UHCI_DEBUG 1882 if (uhcidebug > 10) { 1883 DPRINTF(("uhci_device_request: before transfer\n")); 1884 uhci_dump_tds(setup); 1885 } 1886 #endif 1887 1888 /* Set up interrupt info. */ 1889 ii->xfer = xfer; 1890 ii->stdstart = setup; 1891 ii->stdend = stat; 1892 #if defined(__FreeBSD__) 1893 callout_handle_init(&ii->timeout_handle); 1894 #endif 1895 #ifdef DIAGNOSTIC 1896 if (!ii->isdone) { 1897 printf("uhci_device_request: not done, ii=%p\n", ii); 1898 } 1899 ii->isdone = 0; 1900 #endif 1901 1902 sqh->elink = setup; 1903 sqh->qh.qh_elink = LE(setup->physaddr); 1904 sqh->intr_info = ii; 1905 1906 s = splusb(); 1907 uhci_add_ctrl(sc, sqh); 1908 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 1909 #ifdef UHCI_DEBUG 1910 if (uhcidebug > 12) { 1911 uhci_soft_td_t *std; 1912 uhci_soft_qh_t *xqh; 1913 uhci_soft_qh_t *sxqh; 1914 int maxqh = 0; 1915 uhci_physaddr_t link; 1916 DPRINTF(("uhci_enter_ctl_q: follow from [0]\n")); 1917 for (std = sc->sc_vframes[0].htd, link = 0; 1918 (link & UHCI_PTR_Q) == 0; 1919 std = std->link.std) { 1920 link = LE(std->td.td_link); 1921 uhci_dump_td(std); 1922 } 1923 sxqh = (uhci_soft_qh_t *)std; 1924 uhci_dump_qh(sxqh); 1925 for (xqh = sxqh; 1926 xqh != NULL; 1927 xqh = (maxqh++ == 5 || xqh->hlink==sxqh || 1928 xqh->hlink==xqh ? NULL : xqh->hlink)) { 1929 uhci_dump_qh(xqh); 1930 } 1931 DPRINTF(("Enqueued QH:\n")); 1932 uhci_dump_qh(sqh); 1933 uhci_dump_tds(sqh->elink); 1934 } 1935 #endif 1936 if (xfer->timeout && !sc->sc_bus.use_polling) { 1937 usb_timeout(uhci_timeout, ii, 1938 MS_TO_TICKS(xfer->timeout), ii->timeout_handle); 1939 } 1940 splx(s); 1941 1942 return (USBD_NORMAL_COMPLETION); 1943 } 1944 1945 usbd_status 1946 uhci_device_isoc_transfer(xfer) 1947 usbd_xfer_handle xfer; 1948 { 1949 usbd_status err; 1950 1951 DPRINTFN(5,("uhci_device_isoc_transfer: xfer=%p\n", xfer)); 1952 1953 /* Put it on our queue, */ 1954 err = usb_insert_transfer(xfer); 1955 1956 /* bail out on error, */ 1957 if (err && err != USBD_IN_PROGRESS) 1958 return (err); 1959 1960 /* XXX should check inuse here */ 1961 1962 /* insert into schedule, */ 1963 uhci_device_isoc_enter(xfer); 1964 1965 /* and put on interrupt list if the pipe wasn't running */ 1966 if (!err) 1967 uhci_device_isoc_start(SIMPLEQ_FIRST(&xfer->pipe->queue)); 1968 1969 return (err); 1970 } 1971 1972 void 1973 uhci_device_isoc_enter(xfer) 1974 usbd_xfer_handle xfer; 1975 { 1976 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 1977 usbd_device_handle dev = upipe->pipe.device; 1978 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 1979 struct iso *iso = &upipe->u.iso; 1980 uhci_soft_td_t *std; 1981 u_int32_t buf, len, status; 1982 int s, i, next, nframes; 1983 1984 DPRINTFN(5,("uhci_device_isoc_enter: used=%d next=%d xfer=%p " 1985 "nframes=%d\n", 1986 iso->inuse, iso->next, xfer, xfer->nframes)); 1987 1988 if (xfer->status == USBD_IN_PROGRESS) { 1989 /* This request has already been entered into the frame list */ 1990 /* XXX */ 1991 } 1992 1993 #ifdef DIAGNOSTIC 1994 if (iso->inuse >= UHCI_VFRAMELIST_COUNT) 1995 printf("uhci_device_isoc_enter: overflow!\n"); 1996 #endif 1997 1998 next = iso->next; 1999 if (next == -1) { 2000 /* Not in use yet, schedule it a few frames ahead. */ 2001 next = (UREAD2(sc, UHCI_FRNUM) + 3) % UHCI_VFRAMELIST_COUNT; 2002 DPRINTFN(2,("uhci_device_isoc_enter: start next=%d\n", next)); 2003 } 2004 2005 xfer->status = USBD_IN_PROGRESS; 2006 xfer->hcprivint = next; 2007 2008 buf = DMAADDR(&xfer->dmabuf); 2009 status = LE(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(0) | 2010 UHCI_TD_ACTIVE | 2011 UHCI_TD_IOS)); 2012 nframes = xfer->nframes; 2013 s = splusb(); 2014 for (i = 0; i < nframes; i++) { 2015 std = iso->stds[next]; 2016 if (++next >= UHCI_VFRAMELIST_COUNT) 2017 next = 0; 2018 len = xfer->frlengths[i]; 2019 std->td.td_buffer = LE(buf); 2020 if (i == nframes - 1) 2021 status |= LE(UHCI_TD_IOC); 2022 std->td.td_status = status; 2023 std->td.td_token &= LE(~UHCI_TD_MAXLEN_MASK); 2024 std->td.td_token |= LE(UHCI_TD_SET_MAXLEN(len)); 2025 #ifdef UHCI_DEBUG 2026 if (uhcidebug > 5) { 2027 DPRINTFN(5,("uhci_device_isoc_enter: TD %d\n", i)); 2028 uhci_dump_td(std); 2029 } 2030 #endif 2031 buf += len; 2032 } 2033 iso->next = next; 2034 iso->inuse += xfer->nframes; 2035 2036 splx(s); 2037 } 2038 2039 usbd_status 2040 uhci_device_isoc_start(xfer) 2041 usbd_xfer_handle xfer; 2042 { 2043 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2044 uhci_softc_t *sc = (uhci_softc_t *)upipe->pipe.device->bus; 2045 uhci_intr_info_t *ii = upipe->iinfo; 2046 uhci_soft_td_t *end; 2047 int s, i; 2048 2049 #ifdef DIAGNOSTIC 2050 if (xfer->status != USBD_IN_PROGRESS) 2051 printf("uhci_device_isoc_start: not in progress %p\n", xfer); 2052 #endif 2053 2054 /* Find the last TD */ 2055 i = xfer->hcprivint + xfer->nframes; 2056 if (i >= UHCI_VFRAMELIST_COUNT) 2057 i -= UHCI_VFRAMELIST_COUNT; 2058 end = upipe->u.iso.stds[i]; 2059 2060 s = splusb(); 2061 2062 /* Set up interrupt info. */ 2063 ii->xfer = xfer; 2064 ii->stdstart = end; 2065 ii->stdend = end; 2066 #if defined(__FreeBSD__) 2067 callout_handle_init(&ii->timeout_handle); 2068 #endif 2069 #ifdef DIAGNOSTIC 2070 if (!ii->isdone) { 2071 printf("uhci_device_isoc_start: not done, ii=%p\n", ii); 2072 } 2073 ii->isdone = 0; 2074 #endif 2075 LIST_INSERT_HEAD(&sc->sc_intrhead, ii, list); 2076 2077 splx(s); 2078 2079 return (USBD_IN_PROGRESS); 2080 } 2081 2082 void 2083 uhci_device_isoc_abort(xfer) 2084 usbd_xfer_handle xfer; 2085 { 2086 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2087 uhci_intr_info_t *ii = upipe->iinfo; 2088 uhci_soft_td_t **stds = upipe->u.iso.stds; 2089 uhci_soft_td_t *std; 2090 int i, n, nframes; 2091 2092 /* Make interrupt routine ignore it, */ 2093 xfer->status = USBD_CANCELLED; 2094 2095 /* make hardware ignore it, */ 2096 nframes = xfer->nframes; 2097 n = xfer->hcprivint; 2098 for (i = 0; i < nframes; i++) { 2099 std = stds[n]; 2100 std->td.td_status &= LE(~(UHCI_TD_ACTIVE | UHCI_TD_IOC)); 2101 if (++n >= UHCI_VFRAMELIST_COUNT) 2102 n = 0; 2103 } 2104 2105 xfer->hcpriv = ii; 2106 2107 /* make sure hardware has completed, */ 2108 if (xfer->device->bus->intr_context) { 2109 /* We have no process context, so we can't use tsleep(). */ 2110 timeout(uhci_abort_xfer_end, xfer, hz / USB_FRAMES_PER_SECOND); 2111 } else { 2112 usb_delay_ms(xfer->pipe->device->bus, 1); 2113 /* and call final part of interrupt handler. */ 2114 uhci_abort_xfer_end(xfer); 2115 } 2116 } 2117 2118 void 2119 uhci_device_isoc_close(pipe) 2120 usbd_pipe_handle pipe; 2121 { 2122 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2123 usbd_device_handle dev = upipe->pipe.device; 2124 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2125 uhci_soft_td_t *std, *vstd; 2126 struct iso *iso; 2127 int i; 2128 2129 /* 2130 * Make sure all TDs are marked as inactive. 2131 * Wait for completion. 2132 * Unschedule. 2133 * Deallocate. 2134 */ 2135 iso = &upipe->u.iso; 2136 2137 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) 2138 iso->stds[i]->td.td_status &= LE(~UHCI_TD_ACTIVE); 2139 usb_delay_ms(&sc->sc_bus, 2); /* wait for completion */ 2140 2141 uhci_lock_frames(sc); 2142 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2143 std = iso->stds[i]; 2144 for (vstd = sc->sc_vframes[i].htd; 2145 vstd != NULL && vstd->link.std != std; 2146 vstd = vstd->link.std) 2147 ; 2148 if (vstd == NULL) { 2149 /*panic*/ 2150 printf("uhci_device_isoc_close: %p not found\n", std); 2151 uhci_unlock_frames(sc); 2152 return; 2153 } 2154 vstd->link = std->link; 2155 vstd->td.td_link = std->td.td_link; 2156 uhci_free_std(sc, std); 2157 } 2158 uhci_unlock_frames(sc); 2159 2160 free(iso->stds, M_USBHC); 2161 } 2162 2163 usbd_status 2164 uhci_setup_isoc(pipe) 2165 usbd_pipe_handle pipe; 2166 { 2167 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2168 usbd_device_handle dev = upipe->pipe.device; 2169 uhci_softc_t *sc = (uhci_softc_t *)dev->bus; 2170 int addr = upipe->pipe.device->address; 2171 int endpt = upipe->pipe.endpoint->edesc->bEndpointAddress; 2172 int rd = UE_GET_DIR(endpt) == UE_DIR_IN; 2173 uhci_soft_td_t *std, *vstd; 2174 u_int32_t token; 2175 struct iso *iso; 2176 int i; 2177 2178 iso = &upipe->u.iso; 2179 iso->stds = malloc(UHCI_VFRAMELIST_COUNT * sizeof (uhci_soft_td_t *), 2180 M_USBHC, M_WAITOK); 2181 2182 token = LE(rd ? UHCI_TD_IN (0, endpt, addr, 0) : 2183 UHCI_TD_OUT(0, endpt, addr, 0)); 2184 2185 /* Allocate the TDs and mark as inactive; */ 2186 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2187 std = uhci_alloc_std(sc); 2188 if (std == 0) 2189 goto bad; 2190 std->td.td_status = LE(UHCI_TD_IOS); /* iso, inactive */ 2191 std->td.td_token = token; 2192 iso->stds[i] = std; 2193 } 2194 2195 /* Insert TDs into schedule. */ 2196 uhci_lock_frames(sc); 2197 for (i = 0; i < UHCI_VFRAMELIST_COUNT; i++) { 2198 std = iso->stds[i]; 2199 vstd = sc->sc_vframes[i].htd; 2200 std->link = vstd->link; 2201 std->td.td_link = vstd->td.td_link; 2202 vstd->link.std = std; 2203 vstd->td.td_link = LE(std->physaddr); 2204 } 2205 uhci_unlock_frames(sc); 2206 2207 iso->next = -1; 2208 iso->inuse = 0; 2209 2210 return (USBD_NORMAL_COMPLETION); 2211 2212 bad: 2213 while (--i >= 0) 2214 uhci_free_std(sc, iso->stds[i]); 2215 free(iso->stds, M_USBHC); 2216 return (USBD_NOMEM); 2217 } 2218 2219 void 2220 uhci_device_isoc_done(xfer) 2221 usbd_xfer_handle xfer; 2222 { 2223 uhci_intr_info_t *ii = xfer->hcpriv; 2224 2225 DPRINTFN(4, ("uhci_isoc_done: length=%d\n", xfer->actlen)); 2226 2227 /* Turn off the interrupt since it is active even if the TD is not. */ 2228 ii->stdend->td.td_status &= LE(~UHCI_TD_IOC); 2229 2230 LIST_REMOVE(ii, list); /* remove from active list */ 2231 } 2232 2233 void 2234 uhci_device_intr_done(xfer) 2235 usbd_xfer_handle xfer; 2236 { 2237 uhci_intr_info_t *ii = xfer->hcpriv; 2238 uhci_softc_t *sc = ii->sc; 2239 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2240 uhci_soft_qh_t *sqh; 2241 int i, npoll; 2242 2243 DPRINTFN(5, ("uhci_intr_done: length=%d\n", xfer->actlen)); 2244 2245 npoll = upipe->u.intr.npoll; 2246 for(i = 0; i < npoll; i++) { 2247 sqh = upipe->u.intr.qhs[i]; 2248 sqh->elink = 0; 2249 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2250 } 2251 uhci_free_std_chain(sc, ii->stdstart, 0); 2252 2253 /* XXX Wasteful. */ 2254 if (xfer->pipe->repeat) { 2255 uhci_soft_td_t *data, *dataend; 2256 2257 /* This alloc cannot fail since we freed the chain above. */ 2258 uhci_alloc_std_chain(upipe, sc, xfer->length, 1, 2259 xfer->flags & USBD_SHORT_XFER_OK, 2260 &xfer->dmabuf, &data, &dataend); 2261 dataend->td.td_status |= LE(UHCI_TD_IOC); 2262 2263 #ifdef UHCI_DEBUG 2264 if (uhcidebug > 10) { 2265 DPRINTF(("uhci_device_intr_done: data(1)\n")); 2266 uhci_dump_tds(data); 2267 uhci_dump_qh(upipe->u.intr.qhs[0]); 2268 } 2269 #endif 2270 2271 ii->stdstart = data; 2272 ii->stdend = dataend; 2273 #if defined(__FreeBSD__) 2274 callout_handle_init(&ii->timeout_handle); 2275 #endif 2276 #ifdef DIAGNOSTIC 2277 if (!ii->isdone) { 2278 printf("uhci_device_intr_done: not done, ii=%p\n", ii); 2279 } 2280 ii->isdone = 0; 2281 #endif 2282 for (i = 0; i < npoll; i++) { 2283 sqh = upipe->u.intr.qhs[i]; 2284 sqh->elink = data; 2285 sqh->qh.qh_elink = LE(data->physaddr); 2286 } 2287 } else { 2288 ii->stdstart = 0; /* mark as inactive */ 2289 } 2290 } 2291 2292 /* Deallocate request data structures */ 2293 void 2294 uhci_device_ctrl_done(xfer) 2295 usbd_xfer_handle xfer; 2296 { 2297 uhci_intr_info_t *ii = xfer->hcpriv; 2298 uhci_softc_t *sc = ii->sc; 2299 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2300 2301 #ifdef DIAGNOSTIC 2302 if (!(xfer->rqflags & URQ_REQUEST)) 2303 panic("uhci_ctrl_done: not a request\n"); 2304 #endif 2305 2306 LIST_REMOVE(ii, list); /* remove from active list */ 2307 2308 uhci_remove_ctrl(sc, upipe->u.ctl.sqh); 2309 2310 if (upipe->u.ctl.length != 0) 2311 uhci_free_std_chain(sc, ii->stdstart->link.std, ii->stdend); 2312 2313 DPRINTFN(5, ("uhci_ctrl_done: length=%d\n", xfer->actlen)); 2314 } 2315 2316 /* Deallocate request data structures */ 2317 void 2318 uhci_device_bulk_done(xfer) 2319 usbd_xfer_handle xfer; 2320 { 2321 uhci_intr_info_t *ii = xfer->hcpriv; 2322 uhci_softc_t *sc = ii->sc; 2323 struct uhci_pipe *upipe = (struct uhci_pipe *)xfer->pipe; 2324 2325 LIST_REMOVE(ii, list); /* remove from active list */ 2326 2327 uhci_remove_bulk(sc, upipe->u.bulk.sqh); 2328 2329 uhci_free_std_chain(sc, ii->stdstart, 0); 2330 2331 DPRINTFN(5, ("uhci_bulk_done: length=%d\n", xfer->actlen)); 2332 } 2333 2334 /* Add interrupt QH, called with vflock. */ 2335 void 2336 uhci_add_intr(sc, n, sqh) 2337 uhci_softc_t *sc; 2338 int n; 2339 uhci_soft_qh_t *sqh; 2340 { 2341 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2342 uhci_soft_qh_t *eqh; 2343 2344 DPRINTFN(4, ("uhci_add_intr: n=%d sqh=%p\n", n, sqh)); 2345 eqh = vf->eqh; 2346 sqh->hlink = eqh->hlink; 2347 sqh->qh.qh_hlink = eqh->qh.qh_hlink; 2348 eqh->hlink = sqh; 2349 eqh->qh.qh_hlink = LE(sqh->physaddr | UHCI_PTR_Q); 2350 vf->eqh = sqh; 2351 vf->bandwidth++; 2352 } 2353 2354 /* Remove interrupt QH, called with vflock. */ 2355 void 2356 uhci_remove_intr(sc, n, sqh) 2357 uhci_softc_t *sc; 2358 int n; 2359 uhci_soft_qh_t *sqh; 2360 { 2361 struct uhci_vframe *vf = &sc->sc_vframes[n]; 2362 uhci_soft_qh_t *pqh; 2363 2364 DPRINTFN(4, ("uhci_remove_intr: n=%d sqh=%p\n", n, sqh)); 2365 2366 for (pqh = vf->hqh; pqh->hlink != sqh; pqh = pqh->hlink) 2367 #if defined(DIAGNOSTIC) || defined(UHCI_DEBUG) 2368 if (LE(pqh->qh.qh_hlink) & UHCI_PTR_T) { 2369 DPRINTF(("uhci_remove_intr: QH not found\n")); 2370 return; 2371 } 2372 #else 2373 ; 2374 #endif 2375 pqh->hlink = sqh->hlink; 2376 pqh->qh.qh_hlink = sqh->qh.qh_hlink; 2377 if (vf->eqh == sqh) 2378 vf->eqh = pqh; 2379 vf->bandwidth--; 2380 } 2381 2382 usbd_status 2383 uhci_device_setintr(sc, upipe, ival) 2384 uhci_softc_t *sc; 2385 struct uhci_pipe *upipe; 2386 int ival; 2387 { 2388 uhci_soft_qh_t *sqh; 2389 int i, npoll, s; 2390 u_int bestbw, bw, bestoffs, offs; 2391 2392 DPRINTFN(2, ("uhci_setintr: pipe=%p\n", upipe)); 2393 if (ival == 0) { 2394 printf("uhci_setintr: 0 interval\n"); 2395 return (USBD_INVAL); 2396 } 2397 2398 if (ival > UHCI_VFRAMELIST_COUNT) 2399 ival = UHCI_VFRAMELIST_COUNT; 2400 npoll = (UHCI_VFRAMELIST_COUNT + ival - 1) / ival; 2401 DPRINTFN(2, ("uhci_setintr: ival=%d npoll=%d\n", ival, npoll)); 2402 2403 upipe->u.intr.npoll = npoll; 2404 upipe->u.intr.qhs = 2405 malloc(npoll * sizeof(uhci_soft_qh_t *), M_USBHC, M_WAITOK); 2406 2407 /* 2408 * Figure out which offset in the schedule that has most 2409 * bandwidth left over. 2410 */ 2411 #define MOD(i) ((i) & (UHCI_VFRAMELIST_COUNT-1)) 2412 for (bestoffs = offs = 0, bestbw = ~0; offs < ival; offs++) { 2413 for (bw = i = 0; i < npoll; i++) 2414 bw += sc->sc_vframes[MOD(i * ival + offs)].bandwidth; 2415 if (bw < bestbw) { 2416 bestbw = bw; 2417 bestoffs = offs; 2418 } 2419 } 2420 DPRINTFN(1, ("uhci_setintr: bw=%d offs=%d\n", bestbw, bestoffs)); 2421 2422 upipe->iinfo->stdstart = 0; 2423 for(i = 0; i < npoll; i++) { 2424 upipe->u.intr.qhs[i] = sqh = uhci_alloc_sqh(sc); 2425 sqh->elink = 0; 2426 sqh->qh.qh_elink = LE(UHCI_PTR_T); 2427 sqh->pos = MOD(i * ival + bestoffs); 2428 sqh->intr_info = upipe->iinfo; 2429 } 2430 #undef MOD 2431 2432 s = splusb(); 2433 LIST_INSERT_HEAD(&sc->sc_intrhead, upipe->iinfo, list); 2434 splx(s); 2435 2436 uhci_lock_frames(sc); 2437 /* Enter QHs into the controller data structures. */ 2438 for(i = 0; i < npoll; i++) 2439 uhci_add_intr(sc, upipe->u.intr.qhs[i]->pos, 2440 upipe->u.intr.qhs[i]); 2441 uhci_unlock_frames(sc); 2442 2443 DPRINTFN(5, ("uhci_setintr: returns %p\n", upipe)); 2444 return (USBD_NORMAL_COMPLETION); 2445 } 2446 2447 /* Open a new pipe. */ 2448 usbd_status 2449 uhci_open(pipe) 2450 usbd_pipe_handle pipe; 2451 { 2452 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 2453 struct uhci_pipe *upipe = (struct uhci_pipe *)pipe; 2454 usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc; 2455 usbd_status err; 2456 2457 DPRINTFN(1, ("uhci_open: pipe=%p, addr=%d, endpt=%d (%d)\n", 2458 pipe, pipe->device->address, 2459 ed->bEndpointAddress, sc->sc_addr)); 2460 if (pipe->device->address == sc->sc_addr) { 2461 switch (ed->bEndpointAddress) { 2462 case USB_CONTROL_ENDPOINT: 2463 pipe->methods = &uhci_root_ctrl_methods; 2464 break; 2465 case UE_DIR_IN | UHCI_INTR_ENDPT: 2466 pipe->methods = &uhci_root_intr_methods; 2467 break; 2468 default: 2469 return (USBD_INVAL); 2470 } 2471 } else { 2472 upipe->iinfo = uhci_alloc_intr_info(sc); 2473 if (upipe->iinfo == 0) 2474 return (USBD_NOMEM); 2475 switch (ed->bmAttributes & UE_XFERTYPE) { 2476 case UE_CONTROL: 2477 pipe->methods = &uhci_device_ctrl_methods; 2478 upipe->u.ctl.sqh = uhci_alloc_sqh(sc); 2479 if (upipe->u.ctl.sqh == NULL) 2480 goto bad; 2481 upipe->u.ctl.setup = uhci_alloc_std(sc); 2482 if (upipe->u.ctl.setup == NULL) { 2483 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2484 goto bad; 2485 } 2486 upipe->u.ctl.stat = uhci_alloc_std(sc); 2487 if (upipe->u.ctl.stat == NULL) { 2488 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2489 uhci_free_std(sc, upipe->u.ctl.setup); 2490 goto bad; 2491 } 2492 err = usb_allocmem(&sc->sc_bus, 2493 sizeof(usb_device_request_t), 2494 0, &upipe->u.ctl.reqdma); 2495 if (err) { 2496 uhci_free_sqh(sc, upipe->u.ctl.sqh); 2497 uhci_free_std(sc, upipe->u.ctl.setup); 2498 uhci_free_std(sc, upipe->u.ctl.stat); 2499 goto bad; 2500 } 2501 break; 2502 case UE_INTERRUPT: 2503 pipe->methods = &uhci_device_intr_methods; 2504 return (uhci_device_setintr(sc, upipe, ed->bInterval)); 2505 case UE_ISOCHRONOUS: 2506 pipe->methods = &uhci_device_isoc_methods; 2507 return (uhci_setup_isoc(pipe)); 2508 case UE_BULK: 2509 pipe->methods = &uhci_device_bulk_methods; 2510 upipe->u.bulk.sqh = uhci_alloc_sqh(sc); 2511 if (upipe->u.bulk.sqh == NULL) 2512 goto bad; 2513 break; 2514 } 2515 } 2516 return (USBD_NORMAL_COMPLETION); 2517 2518 bad: 2519 uhci_free_intr_info(upipe->iinfo); 2520 return (USBD_NOMEM); 2521 } 2522 2523 /* 2524 * Data structures and routines to emulate the root hub. 2525 */ 2526 usb_device_descriptor_t uhci_devd = { 2527 USB_DEVICE_DESCRIPTOR_SIZE, 2528 UDESC_DEVICE, /* type */ 2529 {0x00, 0x01}, /* USB version */ 2530 UCLASS_HUB, /* class */ 2531 USUBCLASS_HUB, /* subclass */ 2532 0, /* protocol */ 2533 64, /* max packet */ 2534 {0},{0},{0x00,0x01}, /* device id */ 2535 1,2,0, /* string indicies */ 2536 1 /* # of configurations */ 2537 }; 2538 2539 usb_config_descriptor_t uhci_confd = { 2540 USB_CONFIG_DESCRIPTOR_SIZE, 2541 UDESC_CONFIG, 2542 {USB_CONFIG_DESCRIPTOR_SIZE + 2543 USB_INTERFACE_DESCRIPTOR_SIZE + 2544 USB_ENDPOINT_DESCRIPTOR_SIZE}, 2545 1, 2546 1, 2547 0, 2548 UC_SELF_POWERED, 2549 0 /* max power */ 2550 }; 2551 2552 usb_interface_descriptor_t uhci_ifcd = { 2553 USB_INTERFACE_DESCRIPTOR_SIZE, 2554 UDESC_INTERFACE, 2555 0, 2556 0, 2557 1, 2558 UCLASS_HUB, 2559 USUBCLASS_HUB, 2560 0, 2561 0 2562 }; 2563 2564 usb_endpoint_descriptor_t uhci_endpd = { 2565 USB_ENDPOINT_DESCRIPTOR_SIZE, 2566 UDESC_ENDPOINT, 2567 UE_DIR_IN | UHCI_INTR_ENDPT, 2568 UE_INTERRUPT, 2569 {8}, 2570 255 2571 }; 2572 2573 usb_hub_descriptor_t uhci_hubd_piix = { 2574 USB_HUB_DESCRIPTOR_SIZE, 2575 UDESC_HUB, 2576 2, 2577 { UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0 }, 2578 50, /* power on to power good */ 2579 0, 2580 { 0x00 }, /* both ports are removable */ 2581 }; 2582 2583 int 2584 uhci_str(p, l, s) 2585 usb_string_descriptor_t *p; 2586 int l; 2587 char *s; 2588 { 2589 int i; 2590 2591 if (l == 0) 2592 return (0); 2593 p->bLength = 2 * strlen(s) + 2; 2594 if (l == 1) 2595 return (1); 2596 p->bDescriptorType = UDESC_STRING; 2597 l -= 2; 2598 for (i = 0; s[i] && l > 1; i++, l -= 2) 2599 USETW2(p->bString[i], 0, s[i]); 2600 return (2*i+2); 2601 } 2602 2603 /* 2604 * Simulate a hardware hub by handling all the necessary requests. 2605 */ 2606 usbd_status 2607 uhci_root_ctrl_transfer(xfer) 2608 usbd_xfer_handle xfer; 2609 { 2610 usbd_status err; 2611 2612 /* Insert last in queue. */ 2613 err = usb_insert_transfer(xfer); 2614 if (err) 2615 return (err); 2616 2617 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2618 * start first 2619 */ 2620 return (uhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 2621 } 2622 2623 usbd_status 2624 uhci_root_ctrl_start(xfer) 2625 usbd_xfer_handle xfer; 2626 { 2627 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2628 usb_device_request_t *req; 2629 void *buf = NULL; 2630 int port, x; 2631 int s, len, value, index, status, change, l, totlen = 0; 2632 usb_port_status_t ps; 2633 usbd_status err; 2634 2635 #ifdef DIAGNOSTIC 2636 if (!(xfer->rqflags & URQ_REQUEST)) 2637 panic("uhci_root_ctrl_transfer: not a request\n"); 2638 #endif 2639 req = &xfer->request; 2640 2641 DPRINTFN(2,("uhci_root_ctrl_control type=0x%02x request=%02x\n", 2642 req->bmRequestType, req->bRequest)); 2643 2644 len = UGETW(req->wLength); 2645 value = UGETW(req->wValue); 2646 index = UGETW(req->wIndex); 2647 2648 if (len != 0) 2649 buf = KERNADDR(&xfer->dmabuf); 2650 2651 #define C(x,y) ((x) | ((y) << 8)) 2652 switch(C(req->bRequest, req->bmRequestType)) { 2653 case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE): 2654 case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE): 2655 case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT): 2656 /* 2657 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops 2658 * for the integrated root hub. 2659 */ 2660 break; 2661 case C(UR_GET_CONFIG, UT_READ_DEVICE): 2662 if (len > 0) { 2663 *(u_int8_t *)buf = sc->sc_conf; 2664 totlen = 1; 2665 } 2666 break; 2667 case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE): 2668 DPRINTFN(2,("uhci_root_ctrl_control wValue=0x%04x\n", value)); 2669 switch(value >> 8) { 2670 case UDESC_DEVICE: 2671 if ((value & 0xff) != 0) { 2672 err = USBD_IOERROR; 2673 goto ret; 2674 } 2675 totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE); 2676 USETW(uhci_devd.idVendor, sc->sc_id_vendor); 2677 memcpy(buf, &uhci_devd, l); 2678 break; 2679 case UDESC_CONFIG: 2680 if ((value & 0xff) != 0) { 2681 err = USBD_IOERROR; 2682 goto ret; 2683 } 2684 totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE); 2685 memcpy(buf, &uhci_confd, l); 2686 buf = (char *)buf + l; 2687 len -= l; 2688 l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE); 2689 totlen += l; 2690 memcpy(buf, &uhci_ifcd, l); 2691 buf = (char *)buf + l; 2692 len -= l; 2693 l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE); 2694 totlen += l; 2695 memcpy(buf, &uhci_endpd, l); 2696 break; 2697 case UDESC_STRING: 2698 if (len == 0) 2699 break; 2700 *(u_int8_t *)buf = 0; 2701 totlen = 1; 2702 switch (value & 0xff) { 2703 case 1: /* Vendor */ 2704 totlen = uhci_str(buf, len, sc->sc_vendor); 2705 break; 2706 case 2: /* Product */ 2707 totlen = uhci_str(buf, len, "UHCI root hub"); 2708 break; 2709 } 2710 break; 2711 default: 2712 err = USBD_IOERROR; 2713 goto ret; 2714 } 2715 break; 2716 case C(UR_GET_INTERFACE, UT_READ_INTERFACE): 2717 if (len > 0) { 2718 *(u_int8_t *)buf = 0; 2719 totlen = 1; 2720 } 2721 break; 2722 case C(UR_GET_STATUS, UT_READ_DEVICE): 2723 if (len > 1) { 2724 USETW(((usb_status_t *)buf)->wStatus,UDS_SELF_POWERED); 2725 totlen = 2; 2726 } 2727 break; 2728 case C(UR_GET_STATUS, UT_READ_INTERFACE): 2729 case C(UR_GET_STATUS, UT_READ_ENDPOINT): 2730 if (len > 1) { 2731 USETW(((usb_status_t *)buf)->wStatus, 0); 2732 totlen = 2; 2733 } 2734 break; 2735 case C(UR_SET_ADDRESS, UT_WRITE_DEVICE): 2736 if (value >= USB_MAX_DEVICES) { 2737 err = USBD_IOERROR; 2738 goto ret; 2739 } 2740 sc->sc_addr = value; 2741 break; 2742 case C(UR_SET_CONFIG, UT_WRITE_DEVICE): 2743 if (value != 0 && value != 1) { 2744 err = USBD_IOERROR; 2745 goto ret; 2746 } 2747 sc->sc_conf = value; 2748 break; 2749 case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE): 2750 break; 2751 case C(UR_SET_FEATURE, UT_WRITE_DEVICE): 2752 case C(UR_SET_FEATURE, UT_WRITE_INTERFACE): 2753 case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT): 2754 err = USBD_IOERROR; 2755 goto ret; 2756 case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE): 2757 break; 2758 case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT): 2759 break; 2760 /* Hub requests */ 2761 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE): 2762 break; 2763 case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER): 2764 DPRINTFN(3, ("uhci_root_ctrl_control: UR_CLEAR_PORT_FEATURE " 2765 "port=%d feature=%d\n", 2766 index, value)); 2767 if (index == 1) 2768 port = UHCI_PORTSC1; 2769 else if (index == 2) 2770 port = UHCI_PORTSC2; 2771 else { 2772 err = USBD_IOERROR; 2773 goto ret; 2774 } 2775 switch(value) { 2776 case UHF_PORT_ENABLE: 2777 x = UREAD2(sc, port); 2778 UWRITE2(sc, port, x & ~UHCI_PORTSC_PE); 2779 break; 2780 case UHF_PORT_SUSPEND: 2781 x = UREAD2(sc, port); 2782 UWRITE2(sc, port, x & ~UHCI_PORTSC_SUSP); 2783 break; 2784 case UHF_PORT_RESET: 2785 x = UREAD2(sc, port); 2786 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2787 break; 2788 case UHF_C_PORT_CONNECTION: 2789 x = UREAD2(sc, port); 2790 UWRITE2(sc, port, x | UHCI_PORTSC_CSC); 2791 break; 2792 case UHF_C_PORT_ENABLE: 2793 x = UREAD2(sc, port); 2794 UWRITE2(sc, port, x | UHCI_PORTSC_POEDC); 2795 break; 2796 case UHF_C_PORT_OVER_CURRENT: 2797 x = UREAD2(sc, port); 2798 UWRITE2(sc, port, x | UHCI_PORTSC_OCIC); 2799 break; 2800 case UHF_C_PORT_RESET: 2801 sc->sc_isreset = 0; 2802 err = USBD_NORMAL_COMPLETION; 2803 goto ret; 2804 case UHF_PORT_CONNECTION: 2805 case UHF_PORT_OVER_CURRENT: 2806 case UHF_PORT_POWER: 2807 case UHF_PORT_LOW_SPEED: 2808 case UHF_C_PORT_SUSPEND: 2809 default: 2810 err = USBD_IOERROR; 2811 goto ret; 2812 } 2813 break; 2814 case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER): 2815 if (index == 1) 2816 port = UHCI_PORTSC1; 2817 else if (index == 2) 2818 port = UHCI_PORTSC2; 2819 else { 2820 err = USBD_IOERROR; 2821 goto ret; 2822 } 2823 if (len > 0) { 2824 *(u_int8_t *)buf = 2825 (UREAD2(sc, port) & UHCI_PORTSC_LS) >> 2826 UHCI_PORTSC_LS_SHIFT; 2827 totlen = 1; 2828 } 2829 break; 2830 case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE): 2831 if (value != 0) { 2832 err = USBD_IOERROR; 2833 goto ret; 2834 } 2835 l = min(len, USB_HUB_DESCRIPTOR_SIZE); 2836 totlen = l; 2837 memcpy(buf, &uhci_hubd_piix, l); 2838 break; 2839 case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE): 2840 if (len != 4) { 2841 err = USBD_IOERROR; 2842 goto ret; 2843 } 2844 memset(buf, 0, len); 2845 totlen = len; 2846 break; 2847 case C(UR_GET_STATUS, UT_READ_CLASS_OTHER): 2848 if (index == 1) 2849 port = UHCI_PORTSC1; 2850 else if (index == 2) 2851 port = UHCI_PORTSC2; 2852 else { 2853 err = USBD_IOERROR; 2854 goto ret; 2855 } 2856 if (len != 4) { 2857 err = USBD_IOERROR; 2858 goto ret; 2859 } 2860 x = UREAD2(sc, port); 2861 status = change = 0; 2862 if (x & UHCI_PORTSC_CCS ) 2863 status |= UPS_CURRENT_CONNECT_STATUS; 2864 if (x & UHCI_PORTSC_CSC ) 2865 change |= UPS_C_CONNECT_STATUS; 2866 if (x & UHCI_PORTSC_PE ) 2867 status |= UPS_PORT_ENABLED; 2868 if (x & UHCI_PORTSC_POEDC) 2869 change |= UPS_C_PORT_ENABLED; 2870 if (x & UHCI_PORTSC_OCI ) 2871 status |= UPS_OVERCURRENT_INDICATOR; 2872 if (x & UHCI_PORTSC_OCIC ) 2873 change |= UPS_C_OVERCURRENT_INDICATOR; 2874 if (x & UHCI_PORTSC_SUSP ) 2875 status |= UPS_SUSPEND; 2876 if (x & UHCI_PORTSC_LSDA ) 2877 status |= UPS_LOW_SPEED; 2878 status |= UPS_PORT_POWER; 2879 if (sc->sc_isreset) 2880 change |= UPS_C_PORT_RESET; 2881 USETW(ps.wPortStatus, status); 2882 USETW(ps.wPortChange, change); 2883 l = min(len, sizeof ps); 2884 memcpy(buf, &ps, l); 2885 totlen = l; 2886 break; 2887 case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE): 2888 err = USBD_IOERROR; 2889 goto ret; 2890 case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE): 2891 break; 2892 case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER): 2893 if (index == 1) 2894 port = UHCI_PORTSC1; 2895 else if (index == 2) 2896 port = UHCI_PORTSC2; 2897 else { 2898 err = USBD_IOERROR; 2899 goto ret; 2900 } 2901 switch(value) { 2902 case UHF_PORT_ENABLE: 2903 x = UREAD2(sc, port); 2904 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2905 break; 2906 case UHF_PORT_SUSPEND: 2907 x = UREAD2(sc, port); 2908 UWRITE2(sc, port, x | UHCI_PORTSC_SUSP); 2909 break; 2910 case UHF_PORT_RESET: 2911 x = UREAD2(sc, port); 2912 UWRITE2(sc, port, x | UHCI_PORTSC_PR); 2913 usb_delay_ms(&sc->sc_bus, 10); 2914 UWRITE2(sc, port, x & ~UHCI_PORTSC_PR); 2915 delay(100); 2916 x = UREAD2(sc, port); 2917 UWRITE2(sc, port, x | UHCI_PORTSC_PE); 2918 delay(100); 2919 DPRINTFN(3,("uhci port %d reset, status = 0x%04x\n", 2920 index, UREAD2(sc, port))); 2921 sc->sc_isreset = 1; 2922 break; 2923 case UHF_C_PORT_CONNECTION: 2924 case UHF_C_PORT_ENABLE: 2925 case UHF_C_PORT_OVER_CURRENT: 2926 case UHF_PORT_CONNECTION: 2927 case UHF_PORT_OVER_CURRENT: 2928 case UHF_PORT_POWER: 2929 case UHF_PORT_LOW_SPEED: 2930 case UHF_C_PORT_SUSPEND: 2931 case UHF_C_PORT_RESET: 2932 default: 2933 err = USBD_IOERROR; 2934 goto ret; 2935 } 2936 break; 2937 default: 2938 err = USBD_IOERROR; 2939 goto ret; 2940 } 2941 xfer->actlen = totlen; 2942 err = USBD_NORMAL_COMPLETION; 2943 ret: 2944 xfer->status = err; 2945 xfer->hcpriv = 0; 2946 s = splusb(); 2947 usb_transfer_complete(xfer); 2948 splx(s); 2949 return (USBD_IN_PROGRESS); 2950 } 2951 2952 /* Abort a root control request. */ 2953 void 2954 uhci_root_ctrl_abort(xfer) 2955 usbd_xfer_handle xfer; 2956 { 2957 /* Nothing to do, all transfers are synchronous. */ 2958 } 2959 2960 /* Close the root pipe. */ 2961 void 2962 uhci_root_ctrl_close(pipe) 2963 usbd_pipe_handle pipe; 2964 { 2965 DPRINTF(("uhci_root_ctrl_close\n")); 2966 } 2967 2968 /* Abort a root interrupt request. */ 2969 void 2970 uhci_root_intr_abort(xfer) 2971 usbd_xfer_handle xfer; 2972 { 2973 uhci_softc_t *sc = (uhci_softc_t *)xfer->pipe->device->bus; 2974 2975 usb_untimeout(uhci_timo, xfer, xfer->timo_handle); 2976 sc->sc_has_timo = NULL; 2977 2978 if (xfer->pipe->intrxfer == xfer) { 2979 DPRINTF(("uhci_root_intr_abort: remove\n")); 2980 xfer->pipe->intrxfer = 0; 2981 } 2982 xfer->status = USBD_CANCELLED; 2983 usb_transfer_complete(xfer); 2984 } 2985 2986 usbd_status 2987 uhci_root_intr_transfer(xfer) 2988 usbd_xfer_handle xfer; 2989 { 2990 usbd_status err; 2991 2992 /* Insert last in queue. */ 2993 err = usb_insert_transfer(xfer); 2994 if (err) 2995 return (err); 2996 2997 /* Pipe isn't running (otherwise err would be USBD_INPROG), 2998 * start first 2999 */ 3000 return (uhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue))); 3001 } 3002 3003 /* Start a transfer on the root interrupt pipe */ 3004 usbd_status 3005 uhci_root_intr_start(xfer) 3006 usbd_xfer_handle xfer; 3007 { 3008 usbd_pipe_handle pipe = xfer->pipe; 3009 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3010 3011 DPRINTFN(3, ("uhci_root_intr_transfer: xfer=%p len=%d flags=%d\n", 3012 xfer, xfer->length, xfer->flags)); 3013 3014 sc->sc_ival = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval); 3015 usb_timeout(uhci_timo, xfer, sc->sc_ival, xfer->timo_handle); 3016 sc->sc_has_timo = xfer; 3017 return (USBD_IN_PROGRESS); 3018 } 3019 3020 /* Close the root interrupt pipe. */ 3021 void 3022 uhci_root_intr_close(pipe) 3023 usbd_pipe_handle pipe; 3024 { 3025 uhci_softc_t *sc = (uhci_softc_t *)pipe->device->bus; 3026 3027 usb_untimeout(uhci_timo, pipe->intrxfer, pipe->intrxfer->timo_handle); 3028 sc->sc_has_timo = NULL; 3029 DPRINTF(("uhci_root_intr_close\n")); 3030 } 3031
Indexes created Tue Sep 30 20:09:53 GMT 2025